What is charcoal? Give its different forms.

Give different uses of activated charcoal, coke.

What are fullerenes? How are they prepared?
Or
Discuss the structure of fullerenes.

How is carbon monoxide prepared?

How is carbon monoxide prepared on commercial scale? 

How is carbon monoxide prepared on a commercial scale? 

Describe what happens (give chemical equations only) when:
(i) carbon monoxide is treated with chlorine. 
(ii) carbon monoxide is passed through heated NaOH under pressure. 
(iii) Vapours of carbon monoxide are passed over nickel and
(iv) carbon monoxide is passed through heated ferric oxide. 

How is carbon dioxide prepared? Enlist its important uses

149.

What is the action of heat on:
(i) Sodium bicarbonate    
(ii) calcium carbonate  
(iii) Zinc carbonate?

Give one method for industrial preparation and one for laboratory preparation of CO and CO₂ each.