Statement - I: In many crystal structures of ionic substances cations occupy the voids created by anions.
Statement - II: Cations are smaller than anions.

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Both statements I and II are correct

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

Statement-I is correct and statement-II is incorrect

answer is A.

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Detailed Solution

Ionic compounds are made up of anions and cations.
Usually, the larger anions make up the framework of the crystal lattice and the smaller cations then occupy the spaces or holes left between the framework of anions.
Cation are smaller & anions larger in radii than their parent atoms because, there is a loss of electrons from valence shell in the case of cation, so it decreases the shell number and in the case of anion, there is addition of electrons, which causes a decrease in size of cation and increases the size of anion.

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