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Solution


Q.

The allotrope of carbon which is a good conductor of heat and electricity is:
1 Diamond  
2 Graphite  
3 Charcoal  
4 None of these  

Ans.

(2)

The allotrope of carbon which is a good conductor of heat and electricity is graphite. This is because, in its planar structure it has three electrons which are covalently bonded and fourth electron is free to move along the layers from one carbon atom to the next when connected to an external battery.