Question

Assertion : In crystal lattice, size of the cation is larger in a tetrahedral hole than in an octahedral hole.

Reason: The cations occupy more space than anions in crystal packing.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (d) A and R are false

Explanation:

In crystal lattice tetrahedral void is smaller than the octahedral void as

Radius of tetrahedral void = 0.225 R Radius of octahedral void = 0.414 R Anions are larger in size than cations so anions occupy more space.