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

Complete and rewrite the balanced chemical equations

Complete and rewrite the balanced chemical equations

Explain the cause of Lanthanoids contraction.

How are ethylamine and ethyl methyl amine distinguished by using nitrous acid?

What are isotonic solutions? Explain with one example.

What are antacids? 

Derive van’t Hoff general solution equation.

Distinguish between crystalline solids and amorsphous solids.

Classify the following molecular solids into different types: 

1. HCl
2. CO₂
3. Solid ice
4. SO₂

Define Anisotropy.

Write any ‘four points’ of difference between fluorine and other halogens.

What are elastomers? 

Distinguish between thermoplastic polymers and thermosetting polymers.

What is the action of the following on lanthanoids?
a. water
b. Sulphur, heat
c. nitrogen, heat

Molecular solids are ______.

How are the crystalline solids classified?

Answer the following in one or two sentences.

A solid is hard, brittle and electrically nonconductor. Its melt conducts electricity. What type of solid is it?

Answer the following in brief.

Distinguish between ionic solids and molecular solids

Cryoscopic constant depends on ______.

Answer in brief.

What are intensive properties? Explain why density is an intensive property.