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Account for the following:

CH3CHO is more reactive than CH3COCH3 towards reaction with HCN.

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Properties of Alcohols and Phenols

Why ortho-nitrophenol is steam volatile while para-nitrophenol is not?

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Properties of Phenol

What happens when (CH3)3 C – OH is heated with Cu/573 K?

Write the chemical equation in support of your answer.

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of Carbon–Oxygen (C–O) Bond in Alcohols

Identify A and B in the following:

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

Write the mechanism of the following reaction:

\[\ce{2CH3CH2OH ->[H^+][413 K] CH3-CH2-O-CH2-CH3 + H2O}\]

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Preparation of Ethers

Which of the following alcohols will not undergo oxidation?

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of Carbon–Oxygen (C–O) Bond in Alcohols

Which one of the following has the lowest pKa value?

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of O-H Bond

For the pair phenol and cyclohexanol, answer the following:

Why is phenol more acidic than cyclohexanol?

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of O-H Bond

For the pair phenol and cyclohexanol, answer the following:

Give one chemical test to distinguish between the two.

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Properties of Phenol

Why is the C-O bond length in phenols less than that in methanol?

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Structures of Functional Groups of Alcohols, Phenols and Ethers

Arrange the following in order of increasing boiling point:

Ethoxyethane, Butanal, Butanol, n-butane

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Properties of Alcohols and Phenols

How can phenol be prepared from anisole? Give reaction.

Appears in 3 question papers
Chapter: [7] Alcohols, Phenols and Ethers
Concept: Chemical Properties of Phenol

Distinguish between:

C6H5-COCH3 and C6H5-CHO

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Oxidation

Write the chemical reaction involved in Wolff-Kishner reduction.

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Reduction

Write the chemical equation for the reaction involved in Cannizzaro reaction.

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Other Reactions

Why pKa of F-CH2-COOH is lower than that of Cl−CH2−COOH?

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Acids >> Chemical Reactions of Carboxylic Acids - Reactions Involving Cleavege of O-H Bond

Write the product in the following reaction:

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Preparation of Aldehydes

Name the reagents used in the following reactions:

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Acids >> Methods of Preparation of Carboxylic Acids

Predict the products of the following reactions :

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Reduction

Predict the products of the following reactions :

Appears in 3 question papers
Chapter: [8] Aldehydes, Ketones and Carboxylic Acids
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Oxidation
< prev  721 to 740 of 6271  next > 
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CBSE Science (English Medium) कक्षा १२ Important Questions
Important Questions for CBSE Science (English Medium) कक्षा १२ Biology
Important Questions for CBSE Science (English Medium) कक्षा १२ Chemistry
Important Questions for CBSE Science (English Medium) कक्षा १२ Computer Science (C++)
Important Questions for CBSE Science (English Medium) कक्षा १२ Computer Science (Python)
Important Questions for CBSE Science (English Medium) कक्षा १२ English Core
Important Questions for CBSE Science (English Medium) कक्षा १२ English Elective - NCERT
Important Questions for CBSE Science (English Medium) कक्षा १२ Entrepreneurship
Important Questions for CBSE Science (English Medium) कक्षा १२ Geography
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Core)
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Elective)
Important Questions for CBSE Science (English Medium) कक्षा १२ History
Important Questions for CBSE Science (English Medium) कक्षा १२ Informatics Practices
Important Questions for CBSE Science (English Medium) कक्षा १२ Mathematics
Important Questions for CBSE Science (English Medium) कक्षा १२ Physical Education
Important Questions for CBSE Science (English Medium) कक्षा १२ Physics
Important Questions for CBSE Science (English Medium) कक्षा १२ Political Science
Important Questions for CBSE Science (English Medium) कक्षा १२ Psychology
Important Questions for CBSE Science (English Medium) कक्षा १२ Sociology
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