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Given two statements below: Statement I : In Cl2 molecule the covalent radius is double of the atomic radius of chlorine. Statement II : Radius of anionic species is always greater than their parent atomic radius. Choose the most appropriate answer from options given below: (1) Both Statement I and Statement II are correct. (2) Both Statement I and Statement II are incorrect. (3) Statement I is correct but Statement II is incorrect. (4) Statement I is incorrect but Statement II is correct.

1. (1) Both Statement I and Statement II are correct.
2. (2) Both Statement I and Statement II are incorrect.
3. (3) Statement I is correct but Statement II is incorrect.
4. (4) Statement I is incorrect but Statement II is correct.

Correct answer: (4) Statement I is incorrect but Statement II is correct.

Solution

Statement I is incorrect because the covalent radius of Cl2 is not double the atomic radius of chlorine; they are related but not in that manner. Statement II is correct as anionic species do have a larger radius than their parent atoms due to the addition of electrons, which increases electron-electron repulsion.

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