Q33 / 200 · TS EAMCET 2002 · Chemistry

The products formed when heavy water is reacted with magnesium nitride, are

  • A
    $\mathrm{NH}_3, \mathrm{Mg}(\mathrm{OH})_2$
  • B
    $\mathrm{NH}_3, \mathrm{Mg}(\mathrm{OD})_2$
  • C
    $\mathrm{ND}_3, \mathrm{Mg}(\mathrm{OH})_2$
  • Correct answer
    D
    $\mathrm{ND}_3, \mathrm{Mg}(\mathrm{OD})_2$

Solution

When heavy water is reacted with magnesium nitride $\mathrm{Mg}(\mathrm{OD})_2$ and $\mathrm{ND}_3$ are formed. $$ \mathrm{Mg}_3 \mathrm{~N}_2+6 \mathrm{D}_2 \mathrm{O} \longrightarrow 3 \mathrm{Mg}(\mathrm{OD})_2+2 \mathrm{ND}_3 $$

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

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