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HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Chemistry

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Chemistry
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Answer in brief.

Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Explain why p-nitrophenol is a stronger acid than phenol.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

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Answer in brief.

Give the equations of the reactions for the preparation of phenol from isopropyl benezene.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer in brief.

Give a simple chemical test to distinguish between ethanol and ethyl bromide.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

Answer the following in one sentence.

Predict the product of the following reaction:

\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Answer the following in one sentence.

Predict the product of the following reaction:

\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

Answer the following in one sentence.

Name the product obtained by reacting toluene with carbon monoxide and hydrogen chloride in presence of anhydrous aluminium chloride.

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Answer the following in one sentence.

Name the product obtained by reacting toluene with carbon monoxide and hydrogen chloride in presence of anhydrous aluminium chloride.

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Choose the most correct option.

Which one of the following compounds has the highest boiling point?

[13] Amines
Chapter: [13] Amines
Concept: undefined >> undefined

Answer in one sentence.

Arrange the following amines in increasing order of boiling points.

n-propylamine, ethylmethyl amine, trimethylamine.

[13] Amines
Chapter: [13] Amines
Concept: undefined >> undefined

Complete the following statement.

Caprolactam is used to prepare _______.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Complete the following statement.

Novolac is a copolymer of _______ and _______.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Terylene is ______ polymer of terephthalic acid and ethylene glycol

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Complete the following statement.

Benzoyl peroxide used in addition polymerisation acts as _______.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Complete the following statement.

Polythene consists of polymerized_______.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following in one sentence.

Write examples of addition polymers and condensation polymers.

[15] Introduction to Polymer Chemistry
Chapter: [15] Introduction to Polymer Chemistry
Concept: undefined >> undefined

Answer the following

Explain the role of green chemistry.

[16] Green Chemistry and Nanochemistry
Chapter: [16] Green Chemistry and Nanochemistry
Concept: undefined >> undefined
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