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JEE Main 2005
Exam
JEE Main
Year
2005
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2005 · Chemistry · s Block Elements

Based on lattice energy and other considerations which one of the...

Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point.

Options

  1. ALiCl
  2. BNaCl
  3. CKCl
  4. DRbCl

Correct answer

B. NaCl

Step-by-step solution

Although lattice energy of LiCl higher than NaCl but LiCl is covalent in nature and NaCl ionic there after , the melting point decreases as we move NaCl because the lattice energy decreases as a size of alkali metal atom increases (lattice energy ∝ to melting point of alkali metal halide)
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