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Question: Answered & Verified by Expert
All of the following share the same crystal structure except.
ChemistrySolid StateJEE MainJEE Main 2018 (15 Apr Shift 2 Online)
Options:
  • A
    $\mathrm{RbCl}$
  • B
    $\mathrm{NaCl}$
  • C
    $\mathrm{CsCl}$
  • D
    $\mathrm{LiCl}$
Solution:
2548 Upvotes Verified Answer
The correct answer is:
$\mathrm{LiCl}$
$\mathrm{RbCl}, \mathrm{NaCl}$ and $\mathrm{CsCl}$ share the same crystal structure except $\mathrm{LiCl}$.
$\mathrm{LiCl}$ is deliquescent. It crystalises as a hydrated LiCl. $2 \mathrm{H}_2 \mathrm{O}$. Other alkali metal chlorides do not form hydrates.

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