Q27 / 125 · BITSAT 2010 · Chemistry

Which liberates ammonia when treated with water?

  • A
    $\mathrm{Li}_{3} \mathrm{~N}$
  • B
    $\mathrm{Mg}_{3} \mathrm{~N}_{2}$
  • C
    $\mathrm{CaCN}_{2}$
  • Correct answer
    D
    All

Solution

All nitrides react with $\mathrm{H}_{2} \mathrm{O}$ to give $\mathrm{NH}_{3}$ and $\mathrm{CaCN}_{2}$ also react with $\mathrm{H}_{2} \mathrm{O}$ $$ \mathrm{CaNCN}+3 \mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{CaCO}_{3}+\mathrm{NH}_{3} $$

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

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