EASY
12th CBSE
IMPORTANT
Earn 100

When phenol is treated with bromine water, white precipitate is obtained. Give the structure and the name of the compound formed.

Important Questions on Alcohols, Phenols and Ethers

MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 34
Arrange the following compounds in increasing order of acidity and give a suitable explanation.
Phenol, o-nitrophenol, o-cresol
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 35
Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides.
Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols.
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 36
What happens when benzene diazonium chloride is heated with water?
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 38
Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.
HARD
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 40
Write the structures of the isomers of alcohols with molecular formula C4H10O. Which of these exhibits optical activity?
HARD
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 43
Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 46
Write steps to carry out the conversion of phenol to aspirin.
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Chemistry - Class 12>Chapter 11 - Alcohols, Phenols and Ethers>Short Answer Type>Q 47
Nitration is an example of aromatic electrophilic substitution and its rate depends upon the group already present in the benzene ring. Out of benzene and phenol, which one is more easily nitrated and why?