MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistrys- Block 3.0Previous Year Questions

Lower melting point chloride is (JCECE 2006)

A.LiCl✓ Correct

B.NaCl

C.KCl

D.CsCl

Explanation

Melting point of alkali metallic halides depends on the reactivity of a cation and strength of the ionic bond formed. For alkali metal chloride as we move down the group, the reactivity and strength of the ionic bond increases. Therefore, LiCl has a lower melting point and CsCl has a higher melting point.

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