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JEE Main2026Jan 24, Shift 1Chemistry
Q.

Given below are two statements :

Statement I : is the correct order in terms of metallic character.

Statement II : Atomic radius is always greater than the ionic radius for any element.

In the light of the above statements, choose the correct answer from the options given below

  1. A

    Both Statement I and Statement II are true

  2. B

    Both Statement I and Statement II are false

  3. C

    Statement I is false but Statement II is true

  4. D

    Statement I is true but Statement II is false

Solution

Statement I: Metallic character decreases across a period (B is non-metallic) and increases down a group. The s-block element K is the most metallic, while B is the least. The order is correct. True.

Statement II: The claim fails for anions. When an atom gains electrons to form an anion, electron–electron repulsion increases and the effective nuclear charge per electron decreases, so the anion is larger than the parent atom (e.g. ). The statement is true only for cations, not in general. False.

Statement I is true but Statement II is false.

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