Q77 / 160 · JIPMER 2010 · Chemistry

Ammonia gas can be dried over

  • A
    $\mathrm{CaCl}_2$
  • B
    Conc. $\mathrm{H}_2 \mathrm{SO}_4$
  • C
    $\mathrm{P}_2 \mathrm{O}_5$
  • Correct answer
    D
    quick lime

Solution

Ammonia is dried over quick lime $(\mathrm{CaO})$. It cannot be dried over conc. $\mathrm{H}_2 \mathrm{SO}_4, \mathrm{P}_2 \mathrm{O}_5$ and $\mathrm{CaCl}_2$ because it reacts with these compounds.

Hence, the correct answer is option: 'D'.

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