JEE Main 2005 — s Block Elements Question with Solution
JEE Main 2005
Question
Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point.
Choose an option
Show full solutionCorrect option: B
Correct answer
BNaCl
Step-by-step explanation
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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This is a previous-year question from JEE Main 2005, covering the s Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.