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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ss091

A ccp lattice contains $0.5$ mol of atoms, $N_{A} = 6.022 \times 1 0^{23} mo l^{- 1}$ . Which statements are correct?

ATetrahedral voids number $6.02 \times 1 0^{23}$ .
BTetrahedral voids are twice the octahedral voids.
CTotal voids number $1.20 \times 1 0^{24}$ .
DOctahedral voids number $3.01 \times 1 0^{23}$ .

Answer: A, B, D

Octahedral voids

= 0.5 N_{A} = 3.01 \times 1 0^{23}

. Tetrahedral voids

= 2 \times

that

= 6.02 \times 1 0^{23}

. Total voids

= 3 \times 0.5 N_{A} = 9.03 \times 1 0^{23}

, not

1.20 \times 1 0^{24}

.

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