Statement I: Order of lattice energy for same halides are as LiX > NaX > KX.Statement II : Size of alkali metal decreases from Li to K.

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Statement I and Statement II are true.

Statement I is true and statement II is false.

Statement I is false and Statement II is true.

Statement I and Statement II are false.

answer is B.

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Detailed Solution

A small X- is stabilized by smaller cation Li+ through lattice energy Lattice energy of LiX > NaX > KX.I is trueSize of Li> Na > K. II is false

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