PMD PAID 13

Q1 In series circuit, current remains?

A) Same
B) Different
C) Sometimes same sometimes different
D) None of them

Q2 The electron volt is the unit of:….

A) electric current
B) electric potential
C) electric energy
D) electric flux

Q3 The charge on electron is equal to

A) proton
B) two protons
C) two neutrons
D) none of these

Q4 The momentum of white light is ___ than x rays

A) less
B) high
C) equal
D) none of these

Q5 What is the S.I. unit of radioactivity?

A) Curie
B) Rutherford
C) Becquerel
D) all of these

Q6 Heat reservoir is a __________ Temperature bath

A) Constant
B) Variable
C) zero
D) High

Q7 The characteristic x-rays are formed due to bombardment of ____

A) photon
B) proton
C) electron
D) none of these

Q8 A particle is performing uniform circular motion has constant:

A) velocity
B) acceleration
C) position
D) momentum

Q9 In an A.C. generator, increase in number of turns in the coil

A) increases emf
B) decreases emf
C) makes the emf zero
D) maintains the emf at a constant value

Q10 The principle behind the working of cathode ray oscilloscope is

A) oscillation
B) half wave rectification
C) full wave rectification
D) none of these

Q11 the value of quantity G in the law of gravitation

A) depend on mass of Earth only
B) depends on radius of Earth only
C) depends on both
D) it independent of mass and radius of Earth

Q12 If the temperature of a reservoir of carnot engine working with efficiency 70% is 1000K, then temperature of sink is

A) 300K
B) 400K
C) 500K
D) 700K

Q13 the force that keeps the body moving in circular motion is:

A) centripetal force
B) centrifugal force
C) force of gravity
D) none of these

Q14 During the circular path in magnetic field, what is the magnetic force

A) F= qB
B) F = qB^2
C) F = qB/v
D) F = qvB

Q15 The successive distance between two crests is called?

A) time period
B) wavelength
C) Wave speed
D) Frequency

Q16 Work is a

A) vector quantity
B) scalar quantity
C) sometime scalar some time vector
D) none of these

Q17 Specific latent heat of fusion of ice is 334 J/g. How much energy is needed to melt 100 g of ice at 0C.

A) 33.4 J
B) 33.4 kJ
C) 3.34 J
D) 3.34 kJ

Q18 Einstein was awarded Nobel Prize for his work on

A) photoelectric effect
B) nuclear fission
C) theory of relativity
D) all are correct

Q19 The open-circuit test in a transformer is used to measure

A) Copper loss
B) winding loss
C) Total loss
D) core loss

Q20 Whenever a transverse wave travelling in a denser medium, is reflected from the boundary of the rarer medium…

A) the direction of its displacement remains same
B) the direction of its displacement is reversed
C) the displacement disappears
D) the displacement becomes double

Q21 If a squash.ball comes back to its starting point after bouncing off the wall several times, then:….

A) its total displacement is zero but its average velocity is non-zero
B) its total displacement is non-zero but its average velocity is zero
C) both its total displacement and its average velocity is non-zero
D) its total displacement is zero and so also is its average velocity

Q22 What will be the photon energy for a wavelength of 5000 angstroms, if the energy of a photon corresponding to a wavelength of 7000 angstroms is 4.23 × 10-19 J?

A) 0.456 eV
B) 5.879 eV
C) 3.701 eV
D) 1.6 x 10^-19 eV

Q23 The clouds are formed when water ___ heat

A) absorb
B) release
C) first absorb than release
D) first release than absorb

Q24 Which one of the following does not have negative temperature coefficient?

A) Aluminium
B) Paper
C) Rubber
D) Mica

Q25 Electric generator converts _______ to ________ energy

A) electric, mechanical
B) mechanical , electric
C) mechanical , potential
D) not enough information

Q26 A stone of mass 1 kg dropped from a height of 10m with the speed of 14 m/s, approximate kinetic energy is

A) 10 J
B) 0 J
C) 100 J
D) 1000 J

Q27 Microscope uses ___ wavelength to reduce diffraction

A) shorter
B) longer
C) white
D) none of these

Q28 After certain lapse of time, the fraction of radioactive polonium is found to be 12.5% of initial quantity. If the half life of polonium is 138 days, then duration of time lapse is………..days

A) 34.5
B) 276
C) 414
D) 125

Q29 If we make the magnetic field stronger, the value of induced current is

A) Decreased
B) Increased
C) Vanished
D) Kept constant

Q30 When a charge experience a force, there will be_____ field developed

A) magnetic
B) electric
C) static
D) all of these

Q31 A positive point charge q1 creates an electric field of magnitude E1 at a spot located at a distance r1 from the charge. The charge is replaced by another positive point charge q2, which creates a field of magnitude E2 = E1 at a distance of r2 = 2r1. How is q1 related to q2?

A) q2 = 4 q1
B) q2 = 2 q1
C) q2 = 0.5 q1
D) q2 = 0.25 q1

Q32 A material is made with two different shapes, which surface will absorb more heat in less time

A) rectangular shape of larger area
B) circular shape of smaller area
C) both will absorb same heat
D) heat absorption is independent of shape of material

Q33 The substrate concentration that produces exactly half of the maximum reaction rate can be described by?

A) Michaelis equation
B) Menten equation
C) Bernoulli equation
D) Michaelis-Menten equation

Q34 In annihilation process particles move in

A) same direction
B) opposite direction
C) perpendicular direction
D) none of these

Q35 Calculate the charge passing through the circuit if it’s current it 10 Amp and the recorded time is 15 seconds

A) 1500 Coulomb
B) 150 Coulomb
C) 13400 Coulomb
D) 140 Coulomb

Q36 The main purpose of the early viral genes that are expressed is to?

A) take over the host machinery
B) synthesize nucleic acids
C) to remove coat of the virus
D) Both A and B

Q37 Modifications of proteins and lipids as glycoproteins and lipoproteins occur in which of the following structures?

A) Ribosomes
B) SER
C) ER
D) golgi apparatus

Q38 An activated enzyme consisting of polypeptide chain and a cofactor is called?

A) Apoenzyme
B) Holoenzyme
C) Activated enzyme
D) both b and c

Q39 Which of these transports sperm from the testis to the penis?

A) sperm duct
B) scrotum
C) urethra
D) gamete

Q40All the animals of the grade radiata are which of the following?

A) Unicellular
B) Triploblastic
C) both a and b
D) Diploblastic

Q41 Thymus is found in human body in —

A) in the medulla oblongata
B) in the mediastinum of the upper thorax
C) both A and B are correct
D) None of these

Q42 The outer portion of spinal cord is composed of:

A) White matter
B) Gray matter
C) Cell bodies
D) non-myelinated nerve fibres

Q43 Which type of reflex arc affects inner organs?

A) autonomic reflex arc
B) somatic reflex arc
C) Both A and B
D) None of these

Q44 Haemophilia B is caused in the absence of:

A) Factor XI
B) Factor IX
C) Factor VIII
D) Factor VII

Q45 Urethra and vagina have —–openings to the exterior:

A) common
B) independent
C) Both A and B
D) None of these

Q46 Which of these cells is not present in phloem?

A) companion cell
B) sieve tube members
C) vessels
D) parenchyma

Q47 The thick and thin filaments of myofibrils are arranged in units called:

A) Z-line
B) actin
C) Sarcomere
D) sarcolemma

Q48 Herpes simplexes is caused by which virus?

A) adenovirus
B) Pox virus
C) influenza Virus
D) herpes virus

Q49 The functional group that best represents ketoses is?

A) CO
B) COOH
C) HCOH
D) HOH

Q50 The rise in blood glucose concentration occurs due to which hormone?

A) glucagon
B) glucose
C) insulin
D) all of these

Q51 The second ionization potential of alkali metals are very high due to

A) Being s-block elements
B) Inert gas configurations
C) ns1 electronic configuration
D) Being metals

Q52 Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering?

A) gibberellins
B) cytokinins
C) auxins
D) ethene

Q53 In complex compounds the oxidation number is written in

A) English
B) Greek
C) Roman numeral
D) Hebrew

Q54 Which enzyme causes the hydrolysis of fats ?

A) Urease
B) Lipase
C) Maltase
D) Protease

Q55 Which one of the following statements is incorrect?

A) Eggs in the ovaries ripen when they meet a sperm
B) Girls are born with thousands of eggs in their ovaries.
C) Hormones control the release of the egg from the ovary.
D) One egg is released from the ovary about every month.

Q56 25 cm3 of the sample of H2 gas effuses four times as rapidly as 25 cm3 of an unknown gas what will be the molar mass of unknown gas?

A) 16g mol-1
B) 32g mol-1
C) 72g mol-1
D) 48 gmol-1

Q57 All of the following descriptions concerning viral multiplication and nucleic acids are true EXCEPT that:

A) viruses contain DNA or RNA, not both.
B) viruses replicate only in living cells
C) viruses use the cell's biosynthetic machinery to synthesize copies of themselves.
D) viral mRNA, viral tRNA, and viral ribosomes are used in viral replication.

Q58 Work done on the system is

A) Negative
B) depends upon Boundary Conditions
C) Positive
D) Zero

Q59 Porcupine is a mammal because:

A) The scales on its body are modified as spines for protection against predators.
B) It lays eggs and has mammary glands.
C) The fur on its body is modified as spines and it is warm-blooded.
D) None of the above.

Q60 The good electron loser elements belongs to group

A) 1A
B) 2A
C) 3A
D) 4A

Q61 Which of the following intermolecular forces are present between octane molecules ?

A) London dispersion forces
B) Dipole dipole forces
C) Debye forces
D) H-Bonding

Q62 Which of the following act as electrophile during nitration of benzene?

A) NO⁺
B) NO₂⁺
C) NO₃⁺
D) HNO₂⁺

Q63 Nucleophilic reactions of carboxylic acids are due to________?

A) Presence of OH bond
B) Presence of C-O single bond
C) Presence of C-O double bond
D) None of these

Q64 Nitrogen N2 has ____number of electrons, protons and neutrons

A) 7,8,9
B) 7,7,7
C) 14,14,14
D) 14,14,15

Q65 Which of the following reaction is used in the preparation of vegetable ghee from oil?

A) Hydration
B) Sulphonation
C) Hydrogenation
D) Dehydrogenation

Q66 Binary compounds of halogens with alkali metals are called

A) Oxides
B) Hydrides
C) Halides
D) Nitriles

Q67 According to Bohr, the orbits in which electrons revolve around the nucleus are

A) oval
B) elliptical
C) cylindrical
D) circular

Q68 Angles in a Unit Cell are denoted by

A) x,y,z
B) a,b,c
C) α, ϐ, ϒ
D) i , j , k

Q69 All are aliphatic carboxylic acid except ?

A) Benzoic acid
B) Methanoic acid
C) Ethanoic acid
D) Acetic acid

Q70 Choose the correct spelling of the word

A) lentgh
B) lenth
C) length
D) lingth

Q71 The thief has ____ all my belongings.

A) robbed
B) taken
C) stolen
D) taken away

Q72 Look at this series: 80, 10, 70, 15, 60, … What number should come next?

A) 20
B) 25
C) 30
D) 50

Q73 Statements : All film stars are playback singers. All film directors are film stars. Conclusions : I. All film directors are playback singers. II. Some film stars are film directors.

A) Only conclusion II follows
B) Either I or II follows
C) Neither I nor II follows
D) Both I and II follow

Q74 If no of moles of products are more than those of reactants, volume in the equilibrium expression appears in

A) denominator
B) Numerator
C) As Exponent
D) None of these

Q75 Saira speaks so fast that it’s ______ to understand her sometimes.

A) easy
B) difficult
C) slow
D) wrong

Q75 Saira speaks so fast that it’s ______ to understand her sometimes.

A) easy
B) difficult
C) slow
D) wrong

Q76 As an officer (A)/ he not only was (B)/ competent but (C)/ also honest. (D)

A) As an officer
B) he not only was
C) competent but
D) also honest.

Q77 Either my mother or my father _____________ coming to the meeting.

A) is
B) are
C) are being
D) has

Q78 I have decided ____________________ (study) more and improve my grades.

A) to study
B) will study
C) studying
D) to be studying

Q79 Is there anything ______ you’d like to ask me about?

A) else) )
B) more
C) extra
D) much

Q80 Which two proteins are the major components of myofibrils, allowing for muscle fiber contraction?

A) Myosin and cartilage
B) Mylode and myosin
C) Lamellae and actin
D) actin and myosin

Q81 What is the pH of human blood?

A) 7.45
B) 7.35
C) 7
D) 7.53

Q82 The enzyme which plays important role in HIV pathogenesis

A) RNA polymerase I
B) DNA polymerase II
C) Reverse Transcriptase I
D) Reverse Transcriptase

Q83 Sensitivity of a galvanometer is defined as

A) The deflection produced per unit micro ampere current
B) The deflection per force
C) Force per unit area
D) None of them

Q84 Electrons in a Voltaic Cell flow from

A) Cathode to Anode
B) Anode to Cathode
C) Right to left
D) None of these

Q85 Compounds having C and H atoms and their derivatives are called as_____?

A) Inorganic compounds
B) Organic compounds
C) Biochemical compounds
D) Carbohydrates

Q86 In case of spectrometer circular scale, graduated in half degree, is attached with

A) Telescope
B) Turntable
C) Cross wire of telescope
D) None of these

Q87 Robert Hooke in 1665 reported his work on the cell in which of the following publications?

A) insectia
B) virology
C) micrographia
D) ecology

Q88 The sarcoplasmic reticulum is a special type of endoplasmic reticulum. Based on this information, which of the following is associated with a sarcoplasmic reticulum?

A) Network of tubules
B) vesicles
C) digestive enzymes
D) both a and b

Q89 In the presence of KF, AlF3 is soluble in HF, find the complex formed

A) K3[AlF6]
B) AlH3
C) K[AlF3H]
D) K3[AlF3H3]

Q90 Formation of Hydrogen molecule according to VBT theory involves overlap of

A) 1s orbital
B) 2s orbital
C) 2p orbital
D) 2px orbital

Q91 Prokaron means before nuclous in

A) Dutch
B) Greek
C) Roman
D) Spanish

Q92 Which of the following is not a viral disease?

A) smallpox
B) mumps
C) tetanus
D) cowpox

Q93 Which pair shows hydrogen bonding among them

A) ammonia & carbon
B) acetone and Ker
C) acetone and chloroform
D) water & Neon

Q94 Ohm’s law is valid when the temperature of conductor is :

A) very low
B) very high
C) varying
D) constant

Q95 The soluble sap of the nucleus in a plant cell is called?

A) cytoplasm
B) nucleoplasm
C) protoplasm
D) protoplast

Q96 Irreversible modifications require the synthesis of which of the following?

A) enzymes
B) carbohydrates
C) vitamins
D) proteins

Q97 The maximum efficiency of full wave rectifier is

A) 80.60%
B) 40.60%
C) 70%
D) 50%

Q98 Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong?

A) Globular
B) Functional
C) fibrous
D) both a and b

Q99 Reduction of ketones produce______?

A) Aldehydes
B) Methanol
C) Primary alcohols
D) Secondary alcohols

Q100 What are the end products of the ETC in animals?

A) ATP
B) carbon dioxide
C) water
D) both a and c

Q101 Pidgeon, platypus and panda are all representatives of which of the following?

A) Homeothermic
B) Hyperthermic
C) Poikilothermic
D) none of these

Q102 Which term refers to the formation of egg cells that begins in the developing ovaries of a female fetus?

A) Meiosis
B) Fertilization
C) Ovulation
D) Oogenesis

Q103 The value of Principal quantum number is _integers up to infinity

A) zero, positive
B) non zero, positive
C) non zero, negative
D) positive

Q104 What would you predict would happen to pancreatic enzymes if they were introduced to the stomach?

A) Their function would decrease due to increased pH
B) Their function would decrease due to decreased pH
C) Their function would increase due to decreased proton concentration
D) Their function would increase due to decreased pH

Q105 Electrons can revolve only in those orbits having _______-angular momentum which depends on its ______ number.

A) variable, quantum
B) fixed, principal
C) fixed, quantum
D) variable, principal

Q106 The pores through which water enters the sponge body are called:

A) Osculi
B) Ostia
C) Opercula
D) None of the above

Q107 What is formed at the end of the preparatory phase of glycolysis?

A) G3P
B) Dihydroxyacetone phosphate
C) pyruvate
D) both a and b

Q108 In a dihybrid cross, what fraction of offspring will display both recessive phenotypes?

A) 1/8
B) 1/4
C) 1/32
D) 1/16

Q109 Breaking of terminal phosphate of ATP releases about Kcal of energy?

A) 6.1
B) 6.3
C) 7.1
D) 7.3

Q110 Which of these processes is the means by which a bacterium can directly uptake and incorporate foreign DNA from the environment into its genome?

A) transduction
B) transformation
C) binary fission
D) conjugation

Q111 Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by?

A) ribosomes
B) cytoplasm
C) golgi apparatus
D) endoplasmic reticulum

Q112 The numbers of capsomeres found in adenovirus capsid is?

A) 162
B) 200
C) 252
D) 155

Q113 The internal energy change in system that has absorbed 2kcal of heat and done 500J of work is

A) 8900J
B) 8800J
C) 7900J
D) 7500J

Q114 Which of the following structures helps cyanobacteria to move?

A) flagella
B) capsule
C) gas vesicles
D) all of these

Q115 Which of the following give silver mirror test ?

A) Butanal
B) Methanal
C) Ethanal
D) All of these

Q116 Two forces of F1 =5 N and F2= 15 N are working on a body in opposite direction. If body displaced by 5 m in direction of net force ,what will be the work done by F2

A) 25 J
B) -75 J
C) 75 J
D) 50 J

Q117 The large number of bundle fibers that joins the left and right cerebral hemispheres is called:

A) Broca's area
B) Lateral sulcus
C) Corpus callosum
D) thalamus

Q118 The idea of inheritance of acquired characteristics was given by

A) Lamark
B) Darwin
C) Aristotle
D) Lyell

Q119 A stationary wave is formed in a pipe which is open at both ends. If two complete loops are formed and the wavelength of the wave is 10 cm, what is the length of the pipe?

A) 15 cm
B) 10 cm
C) 5 cm
D) 20 cm

Q120 when water freezes at C, spaces occur between its molecules which results in its ___

A) decrease in volume
B) decrease in density
C) increase in density
D) increase in volume

Q121 A gas expands 0.25 m^3 at constant pressure 10^3 N/m^2 then work done is

A) 0.25 ergs
B) 25ergs
C) 250 joules
D) 250W

Q122 The sum of potential and kinetic energy of a system is called

A) Entropy
B) Enthalpy
C) Internal Energy
D) Heat Energy

Q123 H-bonding is stronger then_______?

A) Dipole dipole forces
B) Debye forces
C) London forces
D) All of these

Q124 The angular frequency is related to linear frequency by relation

A) inversely
B) directly
C) equally
D) none of these

Q125 Which portion of the brain is primarily responsible for processing and interpreting information:

A) white matter
B) Gray matter
C) medulla
D) All A,B and C

Q126 Transition elements for complexes because______?

A) They have empty d orbitals
B) They show variable oxidation states
C) Both a and b
D) They have strong bonding

Q127 The children _____________ (join) hands to make a circle.

A) joining
B) joins
C) joined
D) had join

Q128 Acceleration can be seen in

A) uniformly moving frame of reference
B) rest frame of reference
C) rotating frame of reference
D) none of these

Q129 A pair of trousers ____ all that I brought along

A) were
B) are
C) would be
D) is

Q130 The oxidation number of Nickel in [Ni(CO)4] is

A) 2
B) 8
C) 6
D) 4

Q131 Choose the correct type of tense. “We will visit the museum”

A) Present
B) Past
C) Future
D) None

Q132 Find the magnetic force when a charge 3.5C with flux density of 4 units is having a velocity of 2m/s

A) 14
B) 28
C) 7
D) 32

Q133 Acceleration is always _______ for a freely falling body

A) positive
B) negative
C) zero
D) none of these

Q134 Coherent source of light means

A) multiple wavelength
B) double wavelength
C) single wavelength
D) coherent photons

Q135 Statement: Large number of people living in the low-lying areas has been evacuated during the last few days to safer places. The government has rushed in relief supplies to the people living in the affected areas.

A) Statement I is the cause and statement II is its effect.
B) Statement II is the cause and statement I is its effect
C) Both the statements I and II are independent causes
D) Both the statements I and II are effects of some common cause

Q136 Statement The management of hospitals are getting worse day by day. The doctors are so confused and they don’t even know how to tackle bunch of patients. I. Our Government should increase medical seats. So that we can get more doctor every year. In this case the stress on medical staff will increase as well. II. The Government should provide and develop strategies for medical staff and hospitals

A) Both of them follows
B) None of them follows
C) Only I follows
D) Only II follows

Q137 crammed

A) stuff
B) thronged
C) empty
D) unload

Q138 Choose the correct sentence.

A) Today was her sisters birthday so she took her out for dinner.
A) Today was her sisters birthday so she took her out for dinner.
C) Today was her sister’s birthday so she took her out for dinner.
D) Today was her Sister’s birthday, so she took her out for dinner.

Q139 Which one is correct?

A) Had she clean her home?
B) Is that she cleaned her home?
C) Did she clean her home?
D) Has she cleaned her home?

Q140 Neither my sisters nor my mother ________ going to sell the house.

A) is
B) am
C) are
D) had

Q141 Transistors can be used as

A) half wave rectifier
B) full wave rectifier
C) both
D) none of these

Q142 Which of the following is true regarding balancing selection?

A) An example is heterozygote advantage
B) It maintains variation in a population
C) It is the opposite of purifying selection
D) all of these

Q143 What are osteocytes?

A) white blood cell
B) bone cell
C) brain cell
D) none of these

Q144 Choose the correct sentence.

A) The sun was rising; we had to move.
B) The sun was rising; we had to move?
C) The sun was rising, we had to move.
D) The sun was rising we had to move.

Q145 The nucleus shape is considered to be

A) square
B) rectangle
C) sphere
D) circular

Q146 A square loop of side 2 m is place in a 5 T of magnetic field. What will be the related flux?

A) 2.5 Weber
B) 5 weber
C) 10 weber
D) 20 weber

Q147 The number of neutrons emerged out in a single nucleus during fission reaction are

A) infinite
B) zero
C) 3
D) none of these

Q148 We ______________ (visit) the lake many times before, but we enjoyed ourselves the most this time.

A) visit
B) have visited
C) visited
D) had visited

Q149 A test charge of 23 μC is at a point P where an external electric field is directed to the left and has a magnitude of 3.1 x10^6 N/C. If the test charge is replaced with another test charge of 13 μC, what happens to the external electric field at P?

A) it remains same
B) it reverses direction
C) it changes in a way that cannot be determined
D) 3.1 x 10^5 N/C

Q150 Find the radius of the circular path if a car is moving with a velocity of 25 m/s and has a centripetal acceleration of 10 m/s^2 ?

A) 72.3 m/s
B) 30 m/s
C) 62.5 m/s
D) 52.5 m/s

Q151 Which of the following is evidence of a common ancestor?

A) Morphological similarities
B) Fossil record
C) Vestigial characteristics
D) all of these

Q152 The function of vocal cords is to help in:

A) voice production
B) energy production
C) glucose production
D) air production

Q153 A peptide bond is represented by?

A) C-N link
B) C- O link
C) N-H link
D) C-H link

Q154 The cause behind vomiting is:

A) peristalsis
B) anti peristalsis
C) swallowing
D) Hunger pangs

Q155 Spermatids differentiate into:

A) Spermatozoa
B) secondary spermatocyte
C) primary oocyte
D) mature sperms

Q156 What is utilized during sugar production in photosynthesis?

A) ATP
B) naDH
C) carbon dioxide
D) both a and b

Q157 Which of these cannot sink during translocation?

A) root
B) fruits
C) stems
D) leaves

Q158 In Which of the following reaction of carboxylic acids only C=O group involved in bonding and OH group is replaced ?

A) Reaction of carboxylic acid with NaOH
B) Reaction of carboxylic acids with Carbonate
C) Formation of anhydride
D) Reaction of carboxylic acids with SOCl₂

Q159 Look at this series 5.2, 4.8, 4.4, 4. What number should come next

A) 3
B) 3.3
C) 3.5
D) 3.6

Q160 which one of them belongs to tetragonal system

A) Bi
B) Sn
C) Fe
D) Zn

Q161 If 9.8 g of sulfuric acid dissolved in excess quantity of water, it will yield _______moles of hydrogen ion ( H+) and _____mole of sulphate ions (SO4 -2)

A) 0.1, 0.2
B) 0.1, 0.3
C) 0.2, 0.4
D) 0.2,0.1

Q162 Which word does not belong to others?

A) Tiger
B) Leopard
C) Duck
D) Elephant

Q163 According to VSEPR theory ,the repulsions are called

A) joule repulsion
B) planks repulsion
C) Van der waals repulsion
D) J.J.Thomson repulsion

Q164 Statement: The farmers have decided against selling their Kharif crops to the government agencies. The government has reduced the procurement price of Kharif crops starting from last month to the next six months.

A) Statement I is the cause and statement II is its effect.
B) Statement II is the cause and statement I is its effect
C) Both the statements I and II are independent causes
D) Both the statements I and II are effects of independent causes

Q165 What is the value of One calorie in joule ?

A) 4.98J
B) 7.98J
C) 4.18J
D) 8.21J

Q166 Which of the following are soluble in water?

A) Small alcohols
B) Small carboxylic acids
C) Acetone
D) Butane

Q167 The simplest hydrocarbon to have structural isomer is:

A) Butane
B) Butanone
C) Butene
D) Butyne

Q168 Statement The Management of School M has decided to give free breakfast from next academic year to all the students in its primary section through its canteen even though they will not get any government grant. Courses of Action (I) The school will have to admit many poor students who will seek admission for the next academic year. (II) The canteen facilities and utensils have to be checked and new purchases to be made to equip it properly. (III) Funds will have to be raised to support the scheme for years to come.

A) Only II and III follows
B) Only III and I follow
C) Only I and II follow
D) Only I follows

Q169 Which of the following is slow step in SN1 reactions?

A) Ionization
B) Formation of carbocation
C) Formation of Double bond
D) Formation of Alkyl halide from Carbocation

Q170 Complete the series A3.3, B6.6, C9.9, _____?

A) D13.4
B) D13.2
C) D13.1
D) D13.2

Q171 What does the size of viruses’ range between?

A) 100 mm to 150 mm
B) 20 nm to 250 nm
C) 300 nm to 3000 nm
D) 3 nm to 30 nm

Q172 The energy input to an engine is 60 J, and the work it performs is 15 J. What is its thermal efficiency?

A) 4.00
B) 1.00
C) 0.25
D) impossible to determine

Q173 What is the octane number of Iso-octane?

A) 40
B) 100
C) 0
D) 2

Q174 Each half reaction in ion electron method is balanced by adding

A) Electrons on left hand side
B) Electron on ride hand side
C) Both left or right hand side
D) None of these

Q175 If anyone of the products concentration is plotted against time instead of reactants the curve obtained will be

A) Parabolic
B) Rising
C) Falling
D) Elliptical

Q176 In NaCl crystal, chloride ions present at the face center are distributed in

A) One Unit Cell
B) 8 Unit cells
C) 4 Unit cells
D) 2 Unit cells

Q177 The epiglottis, a flap of tissues covers the

A) pharynx
B) larynx
C) glottis
D) nasal cavity

Q178 On which factors the vapour pressure of a substance does not depend?

A) Physical state of matter
B) Intermolecular forces
C) Surface area
D) Temperature

Q179 Which of the following compound shows more H-Bonding?

A) CH₃OH
B) CH₃CH₂OH
C) C₆H₅OH
D) C₆H₁₁OH

Q180 Which of the following compounds can be prepared by using grignard reagents?

A) Alkanes
B) Alcohols
C) Carboxylic acids
D) All of these

Q181 On which of the following factors rate of enzyme action is directly proportional ?

A) Concentration of products
B) Time
C) Concentration of substrate
D) Concentration of solvent

Q182 What is the hybridization of carbon in -COOH group?

A) sp²
B) Sp³
C) Sp
D) None of these

Q183 State function is the _________property of system.

A) Microscopic
B) Dependent
C) Macroscopic
D) Constant

Q184 In klinefelter’s syndrome:

A) One X chromosome is missing
B) Sex chromosome fail to segregate
C) Additional sex chromosome is present
D) None of these

Q185 Statements Pakistan is a multilingual country. Urdu is the national language of Pakistan. Conclusions (I)All Pakistanis should learn many languages. (II)To be an Indian one needs to learn Urdu.

A) Only conclusion (I) follows
B) Only conclusion (II) follows
C) Both conclusions follow
D) Both of them do not follow

Q186 The rate of SN₁ reaction become doubled if______?

A) Concentration of Nucleophile doubled
B) Concentration of Substrate doubled
C) Concentration of Substrate Tripled
D) Concentration of substrate remain same

Q187 Addition of HCl to an propene forms_____?

A) 1-chloropropane
B) 2-chloropropane
C) 2-chloropropane
D) 3-chloropropane

Q188 What are parts of Lamarck’s theory of evolution?

A) Individuals lose traits that they don't need
B) Acquired characteristics are heritable
C) Individuals gain characteristics they need
D) All of these

Q189 Which one is not the characteristic of Kingdom Animalia?

A) All animals are ingestive heterotrophs
B) All animals are eukaryotes
C) It is the largest kingdom.
D) All animals develop from the dissimilar gametes i.e. large sperm and the small egg

Q190 Which of the following structure is not present in all the bacteria?

A) cell membrane
B) chromatin
C) ribosome
D) capsule

Q191 In nature, Garden pea is which of the following?

A) Cross fertilized
B) Cross pollinated
C) Self-fertilized
D) none of these

Q192 Ist series of transition elements start from?

A) Sc
B) Y
C) La
D) Cd

Q193 The structures with a diameter less than 1mm are:

A) bronchioles
B) Bronchi
C) Alveoli
D) Air sac

Q194 The type of plastids found in roots of plants _______ .

A) Chloroplasts
B) Chromoplasts
C) Leucoplasts
D) All of them

Q195 Metals are ________?

A) Reducing agents
B) Oxidizing agents
C) Both a and b
D) Dehydrating agents

Q196 Which bond provides stability to complex carbohydrate molecules?

A) C-H
B) C-N
C) C-O
D) C-C

Q197 Pseudocoelom develops from which of the following?

A) Blastopore
B) Plastoquinone
C) Splitting of mesoderm
D) Blastocoel

Q198 The electron emitted in β – radiation originates from where?

A) inner orbits of atom
B) free electrons existing in nuclei
C) the decay of a neutron in a nuclei
D) photon escaping from a nuclei

Q199 Ethanol is used as

A) a drink
B) a fuel
C) a preservative
D) all of above

Q200 Electron affinity of an atom is the energy released when an electron _to an empty or partially filled orbital of an atom to form___

A) removed,cation
B) added,cation
C) added, anion
D) removed, anion

Q201 Primordial soup is a set of hypothetical conditions on ancient earth first proposed by?

A) Dmitri Ivanovsky
B) Dmitry Anuchin
C) Nikolay Shatsky
D) Alexander Oparin

Q202 Protein is a polymer of________?

A) Nitrogen atoms
B) Amino acids
C) Glucose
D) Nitrogenous base

Q203 The structure of an enzyme is altered by which of the following inhibitors?

A) Reversible inhibitor
B) Competitive inhibitor
C) Non-competitive inhibitor
D) Irreversible inhibitor

Q204 Choose the correct spelling of the word

A) excellant
B) excalant
C) excellent
D) excallent

Q205 There are three bulbs of 60W 100W and 200W. Which bulb has the thickest filament?

A) 100W
B) 200W
C) 60W
D) all

Q206 Filial is a Latin word. It means which of the following?

A) spring
B) issue
C) progeny
D) none of these

Q207 Choose the correct sentence.

A) Drinks on the menu included the following, hot chocolate, iced tea and lemonade.
B) Drinks on the menu included the following hot chocolate, iced tea, and lemonade.
C) Drinks on the menu included the following: hot chocolate, iced tea and lemonade.
D) Drinks on the menu included the following. Hot chocolate, iced tea and lemonade

Q208 What was the unit membrane model?

A) Plasma membrane has lipid bilayer.
B) Proteins are embedded in the lipid bilayer.
C) Plasma membrane has charged pores for transport of materials which cannot penetrate through the lipid bilayer.
D) All of the above.

Q209 __________ apple a day keeps the doctor away.

A) A
B) An
C) The
D) No article

Q210 Stop it! What do you think you ________________?

A) do
B) doing
C) are doing
D) is doing

PMD PAID 13

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