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HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Important Questions for Chemistry

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Chemistry
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How is phenol converted into the following?

benzoquinone

Appears in 2 question papers
Chapter: [11.03] Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

How will you obtain the following? (Give balanced equation.)

Ethyl chloride from diethyl ether.

Appears in 2 question papers
Chapter: [11.03] Ethers
Concept: Ethers >> Physical and Chemical Properties of ether

Write a chemical reaction for the following conversion:

Acetic acid into ethyl alcohol.

Appears in 2 question papers
Chapter: [11.03] Ethers
Concept: Alcohols, Phenols and Ethers >> Nomenclature

Write chemical equation for the following:
Gatterman - Koch formylation

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Preparation of Aldehydes and Ketones

Write chemical equation for the following :
Rosenmund reduction

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Preparation of Aldehydes and Ketones

Correct order of acid strength for

  1. acetic acid
  2. fluoroacetic acid
  3. 4-Nitrobenzoic acid 
  4. 4-Methyl benzoic acid is ______.
Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Properties of Carboxylic Acids

Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Properties of Aldehydes and Ketones

Write a classification of aliphatic ketones with a suitable example.

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Classification of Aldehydes, Ketones and Carboxylic Acids

Write a reaction to distinguish acetaldehyde from acetone

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Properties of Aldehydes and Ketones

Convert the following:

Cyclohexene into adipic acid.

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Preparation of Carboxylic Acids

Write mechanism of Aldol addition reaction.

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Aldehydes and Ketones >> Reactivity of Alpha Hydrogen in Aldehydes

Write a note on the self oxidation-reduction reaction of an aldehyde with a suitable example.

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Other Reactions

Describe the following:

Cannizzaro reaction

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Other Reactions

Write chemical equation for the following:
Gatterman - Koch formylation

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Preparation of Aldehydes and Ketones

How will you convert sodium acetate to methane?

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Nucleophilic Addition Reactions

Write chemical equation for the following :
Rosenmund reduction

Appears in 2 question papers
Chapter: [12.01] Aldehydes and Ketones
Concept: Preparation of Aldehydes and Ketones

Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.

Appears in 2 question papers
Chapter: [13] Amines
Concept: Classification of Amines

Distinguish between methanamine, dimethanamine and trimethanamine using Hinsberg’s reagent.

Appears in 2 question papers
Chapter: [13] Amines
Concept: Basicity of Amines

What will be the action of the mixture of sodium nitrite and dilute hydrochloric acid on ethyl amine

Appears in 2 question papers
Chapter: [13.01] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Nitrous Acid

What will be the action of the mixture of sodium nitrite and dilute hydrochloric acid on aniline

Appears in 2 question papers
Chapter: [13.01] Amines
Concept: Amines >> Chemical Reactions of Amines - Reaction with Nitrous Acid
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