हिंदी

HSC Science (Electronics) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Advertisements
विषयों
अध्याय
विषयों
मुख्य विषय
अध्याय

Please select a subject first

Advertisements
Advertisements
< prev  1221 to 1240 of 9919  next > 

Answer in one sentence/ word.

Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.

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

Answer in one sentence/ word.

Write the name of the electrophile used in Kolbe’s Reaction.

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

Advertisements

Answer in brief.

Explain why phenol is more acidic than ethyl alcohol.

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

Write two points of difference between the properties of phenol and ethyl alcohol.

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

Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.

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

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

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.

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.

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

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
< prev  1221 to 1240 of 9919  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×