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Assertion : The packing efficiency is ma...

Assertion : The packing efficiency is maximum for the fcc structure.
Reason : The cordination number is 12 in fcc structure.

A

If both assertion and reason and true and reason is the correct explanation of assertion.

B

If both assertion and reason and true and reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
In fcc unit cell, there is ccp arrangment with packing efficiency of 74.01% which is maximum. In ccp arrangment, coordination number is 12.
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