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Assertion : A crystal having `fcc` structure is more closely packed then a crystal having `bcc` structure Reason: packing fraction for `fcc` structure id double than that of `bcc`structureA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true bur reason is falseD. If assertion is false bur reason is true

Answer» Correct Answer - c
Packing fraction in `fcc = 74%`
Packing fraction in `fcc = 47%`


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