Q11Multiple choice
Which of the following compounds will react with sodium hydroxide solution
in water?
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Correct option: A
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Worked solution
Option (i) is the answer
NCERT Exemplar · Class 12 · Chemistry
Chapter 11: Alcohols, Phenols and Ethers
Practice each question, then open the answer or worked solution.
Questions
56 questionsQ12Written answer
Phenol is less acidic than ______________.
(i) ethanol
(ii) o-nitrophenol
(iii) o-methyl phenol
(iv) o-methoxy phenol
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Worked solution
Option (ii) is the answer.
Q13Multiple choice
Which of the following is most acidic?
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Correct option: D
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Worked solution
Option (iv) is the answer.
Q14Multiple choice
Mark the correct order of decreasing acid strength of the following compounds.
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Correct option: B
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Worked solution
Option (ii) is the answer.
Q15Multiple choice
Mark the correct increasing order of reactivity of the following compounds
with HBr/HCl.
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Correct option: C
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Worked solution
Option (iii) is the answer.
Q16Written answer
Arrange the following compounds in increasing order of boiling point.
Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
(i) Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol
(ii) Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
(iii) Pentan-1-ol, butan-2-ol, butan-1-ol, propan-1-ol
(iv) Pentan-1-ol, butan-1-ol, butan-2-ol, propan-1-ol
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Worked solution
Option (i) is the answer
II. Multiple Choice Questions (Type-II)
Note: In the following questions, two or more options may be correct.
Q17Multiple choice
Which of the following are used to convert RCHO into RCH2OH?
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Correct option: A
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Worked solution
Option (i), (ii) and (iii) are the answers.
Q18Written answer
Which of the following reactions will yield phenol?
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Worked solution
Option (A), (B) and (C)
Q19Multiple choice
Which of the following reagents can be used to oxidise primary alcohols to
aldehydes?
in an anhydrous medium.
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Correct option: A
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Worked solution
Option (i), (iii) and (iv) are the answers.
Q20Written answer
Phenol can be distinguished from ethanol by the reactions with _________.
(i) Br2/water
(ii) Na
(iii) Neutral FeCl3
(iv) All the above
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Worked solution
Option (i) and (iii) are the answers.