English

HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Important Questions

Advertisements
Subjects
Topics
Subjects
Popular subjects
Topics

Please select a subject first

Advertisements
Advertisements
< prev  441 to 460 of 4147  next > 

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

How acetone is converted into propane.

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

Explain Aldol condensation of ethanal.

Appears in 2 question papers
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: Chemical Reactions of Aldehydes and Ketones - Reactions Due to α-hydrogen

Write mechanism of Aldol addition reaction.

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

How will you convert sodium acetate to methane?

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

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: 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: Chemical Reactions of Amines - Reaction with Nitrous Acid

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

Appears in 2 question papers
Chapter: [13.01] Amines
Concept: Classification of Amines

What is the action of the following reagent on ethyl amine?

Nitrous acid

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

Complete the following reaction.

\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]

Appears in 2 question papers
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Proteins

Explain the preparation of glucose from sucrose.

Appears in 2 question papers
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates

Define peptide bond.

Appears in 2 question papers
Chapter: [14] Biomolecules
Concept: Biomolecules in the Cell > Proteins
< prev  441 to 460 of 4147  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×