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NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Analyzing +4 | -1
Which order is NOT correct
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Correct option: C
Melting point : LiCl>NaCl>KCl>RbCl>CsClLiCl > NaCl > KCl > RbCl > CsCl
Option C (Melting point : LiCl>NaCl>KCl>RbCl>CsClLiCl > NaCl > KCl > RbCl > CsCl) is NOT correct because as the size of the cation increases, the lattice energy decreases, and hence the melting point decreases.

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