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One gram-atom of graphite and one gram-a...

One gram-atom of graphite and one gram-atom of diamond were separately burnt to `CO_(2)` . The amount of heat liberated was `393.5KJ` and `305.4KJ` respectively. It is apparent that

A

graphite has greater affinity for oxygen

B

diamond has greater affinity for oxygen

C

graphite is more stable than diamond

D

diamond is more stable than graphite

Text Solution

Verified by Experts

The correct Answer is:
B, C
`Delta_(C )H_("graphite")^(-) < Delta_(C )H_("graphite")^(-)`
`implies " "`Diamond has greater affinity for oxygen i.e. Diamond is more reactive (i.e. less stable) than graphite.
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