ALCOHOLS AND PHENOLS

ALCOHOLS AND PHENOLS

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Question 1 of 30

1. Question
Q.1 Hydroxy group is attached to an / a _________ group in phenols
- a. Alkyl
- b. Vinyl
- c. Benzyl
- d. Aryl
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Question 2 of 30

2. Question
Q.2 Alcohols can be classified into primary, secondary and tertiary alcohol.
3-Pentanol is classified as
- a. 3°alcohol
- b. 1°alcohol
- c. 2°alcohol
- d. Both a and c
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Question 3 of 30

3. Question
Q.3 Hydrogen bonding is strongest in
- a. C4 H9 OH
- b. C2 H5 OH
- c. C3 H7 OH
- d. CH3 OH
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Question 4 of 30

4. Question
Q.4 An alcohol is converted into an aldehyde with same number of carbon atoms
in the presence of K2CrO4/H2SO4. the alcohol is
- a. (CH3)3COH
- b. CH3CH2CH2OH
- c. (CH3)2CHOH
- d. All of these
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Question 5 of 30

5. Question
Q.5 Primary, secondary and tertiary alcohols can be identified and distinguished by
- a. Lucas test
- b. Baeyer’s test
- c. Iodoform test
- d. Silver mirror test
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Question 6 of 30

6. Question
Q.6 Absolute alcohol can be obtained from rectified spirit by dry distillation with
- a. Conc. H2SO4
- b. CaO
- c. P2O5
- d. CaCl2
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Question 7 of 30

7. Question
Q.7 The product obtained when ethanol reacts with ammonia in presence of
thorium oxide is
- a. Ethyl imine
- b. Ethyl amine
- c. Ethyl amide
- d. All of these
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Question 8 of 30

8. Question
Q.8 Which of the following is most soluble in water
- a. C2H5OH
- b. C4H9OH
- c. C3H7OH
- d. C10H21OH
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Question 9 of 30

9. Question
Q.9 Alcohol does not produce alkyl halide on reaction with
- a. Cl2
- b. SOCl2
- c. HCl / ZnCl2
- d. PCl5
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Question 10 of 30

10. Question
Q.10 β-Elimination of which of the following alcohol does not give stable product
- a. CH3OH
- b. (CH3)3CCH2OH
- c. (CH3)2CHOH
- d. Both a and b
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Question 11 of 30

11. Question
Q.11 When excess of C2H5OH is heated at 140°C with conc. H2SO4 the compound
obtained is
- a. Diethyl ether
- b. Dimethyl ether
- c. Ethyl hydrogen sulphate
- d. Ethylene
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Question 12 of 30

12. Question
Q.12 Which of the following gives positive Iodoform test
- a. CH3OH
- b. (CH3)3COH
- c. (CH3)2CHOH
- d. C3H7OH
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Question 13 of 30

13. Question
Q.13 The ease of esterification of alcohols is more for
- a. CH3OH
- b. (CH3)2CHOH
- c. C2H5OH
- d. (CH3)3COH
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Question 14 of 30

14. Question
Q.14 Oxidation of 2-Butanol gives
- a. 2- Butene
- b. Butyraldehyde
- c. Butanone
- d. Butyric acid
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Question 15 of 30

15. Question
Q.15 The reaction of ethanol with Na metal is example of ________ reaction
- a. Nucleophilic substitution
- b. Electrophilic substitution
- c. Nucleophilic addition
- d. Electrophilic addition
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Question 16 of 30

16. Question
Q.16 How will you distinguish between methanol and ethanol by
- a. Lucas test
- b. Oxidation
- c. Silver mirror test
- d. Iodoform test
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Question 17 of 30

17. Question
Q.17 At 25°C 2-Hydroxybenzene-sulphonic acid is formed by the reaction of:
- a. (HNO3+H2SO4) with benzene
- b. NaOH with Benzene sulphonic acid
- c. (HNO3+H2SO4) with phenol
- d. H2SO4 with phenol
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Question 18 of 30

18. Question
Q.18 Which can be used to distinguish between alcohol and phenol
- a. Sodium nitro prusside test
- b. Reaction with sodium
- c. Benedict solution
- d. Bromine water
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Question 19 of 30

19. Question
Q.19 Phenol on hydrogenation in presence of nickel catalyst at high temperature
gives
- a. Benzene
- b. Cyclohexanol
- c. Cyclohexane
- d. n-Hexanol
Correct

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Question 20 of 30

20. Question
Q.20 Some of the antiseptic soaps are called carbolic soap. This name is due to
presence of
- a. Phenol
- b. Carbonic acid
- c. Fatty acid
- d. Alkali
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Question 21 of 30

21. Question
Q.21 The reaction of phenol with conc. HNO3 gives
- a. Picric acid
- b. Adipic acid
- c. Benzoic acid
- d. Salicylic acid
Correct

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Question 22 of 30

22. Question
Q.22 Phenol on reaction with bromine water gives
- a. o–Bromophenol
- b. p–Bromophenol
- c. m–Bromophenol
- d. 2, 4, 6–Tribromophenol
Correct

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Question 23 of 30

23. Question
Q.23 Select the compound which is least acidic
- a. Carboxylic acid
- b. Water
- c. Phenol
- d. Alcohol
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Question 24 of 30

24. Question
Q.24 Acidity of phenol is due to
- a. Benzene ring
- b. Hydrogen bonding with water
- c. Breakage of C–O bond
- d. Resonance stabilization of its ion
Correct

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Question 25 of 30

25. Question
Q.25 Which of the following does not give effervescence with Na2CO3
- a. Benzoic acid
- b. Phenol
- c. Phthalic acid
- d. Vinegar
Correct

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Question 26 of 30

26. Question
Q.26 Which one the following compounds is known as tertiary alcohol?
- a. 2-Methyl-1-propanol
- b. 2-Methyl-2-propanol
- c. 2-Propanol
- d. 1-Propanol
Correct

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Question 27 of 30

27. Question
Q.27 When phenol is treated with Zn, the product formed is
- a. Benzoic acid
- b. Benzene
- c. Toluene
- d. Phenyl acetate
Correct

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Question 28 of 30

28. Question
Q.28 If nucleophile attacks on alcohols, which bond of alcohol will break
- a. C – O
- b. C – H
- c. O – H
- d. C – C
Correct

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Question 29 of 30

29. Question
Q.29 1-Propanol and 2-Propanol can be distinguished by
- a. Lucas test
- b. Alkaline KMnO4 test
- c. Fehling’s solution
- d. Sodium nitroprusside test
Correct

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Question 30 of 30

30. Question
Q.30 Among the following, _________ is a structural derivative of water
- a. Alcohols
- b. Phenols
- c. Ethers
- d. All of these
Correct

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