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JEE Main levelSingle correct optionDifficulty 2 of 3sb062

Which statement about lithium chloride is correct and distinguishes it from sodium chloride?

  1. ALiCl is insoluble in water because of its very high lattice enthalpy
  2. BLiCl is considerably soluble in ethanol and pyridine because of its partly covalent character
  3. CLiCl has a lower covalent character than NaCl
  4. DLiCl is non-hygroscopic and always crystallises anhydrous

Answer: B

The small Li+ polarises and gives LiCl appreciable covalent character, so it dissolves in organic solvents such as ethanol and pyridine. LiCl is very soluble in water, is more covalent (not less) than NaCl, and is deliquescent, crystallising as a hydrate.
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