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

How are ethers classified?

Write structural formula for pentane-1,4-diol.

Write structural formulae for Cyclohex-2-en-1-ol.

Write chemical reactions of following reagents on methoxyethane:

PCl₅

Write chemical reactions for the following conversions:

Ethyl bromide to ethene.

Convert the following:

Ethyl alcohol into ethyl acetate.

Convert the following :

anisole to phenol.

What are ketones? 

Write a note on ‘aldol condensation’.

What is the action of phenyl hydrazine on propanone?

What is the action of Zn – Hg / conc. HCl on propanone?

What is the action of Sodium bisulphite on propanone?

Write only reactions for the preparation of benzophenone from benzonitrile.

A compound used as pistachio flavour in ice cream is ___________

How will you convert calcium acetate to acetaldehyde?

Answer the following in one sentence.

Write reaction showing conversion of ethanenitrile into ethanol.

Answer the following in one sentence.

Write reaction showing conversion of benzonitrile into benzoic acid.

Answer in brief.

What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?

Write a note on Stephen reaction.

Write reaction showing conversion of p-bromoisopropylbenzene into p-isopropylbenzoic acid (3 steps).