Assertion: Total number of octahedralvoids present in unit cell of cubic close packing including the one that is present at the body centre, is four . Reason: Besides the body centre, there is one octahedral void present at the centre of each of the six faces of the unit cells and each of which is shared between two adjacent unit cells.

Assertion: Total number of octahedralvoids present in unit cell of cub

1.	Assertion: Total number of octahedralvoids present in unit cell of cubic close packing including the one that is present at the body centre, is four . Reason: Besides the body centre, there is one octahedral void present at the centre of each of the six faces of the unit cells and each of which is shared between two adjacent unit cells.
Answer» Assertion and REASON both are correct STATEMENTS and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion Assertion is correct statement but reason is wrong statement Assertion is wrong statement but reason is correct statement. Solution :Correct Reason.Besides the body centre, there are 12 OCTAHEDRAL voids present at the CENTRES of the 12 edges