UNIT 4

Coal is a biofuel

• Yes

• No

Moisture, Ash.

Find the missing component in proximate analysis

• Carbon

• Volatile matter

Carbon can be estimated using

• KOH

• CaCl2

Nitrogen can be estimated using

• Barium chloride

• Ammonia

What are the types of mining

• Underground and surface

• Surface and Open

Upon the combustion of coal, whats the product

• Carbon and heat

• Carbon dioxide and heat

Where is the largest coal mine situated in India

• Chattisgarh

• Gujarat

Who is the second largest producer of coal

• China

• India

Coal is by product of coke

• Yes

• No

Is unit 4 interesting?

• YES

• NO