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The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
MCQ
Calcium cyanamide on treatment with steam produces:
  • A
    $\mathrm{NH}_3+\mathrm{CaO}$
  • B
    $\mathrm{NH}_3+\mathrm{CaHCO}$
  • ✓
    $\mathrm{NH}_3+\mathrm{CaCO}_3$
  • D
    $\mathrm{NH}_3+\mathrm{Ca}(\mathrm{OH})_2$
✓

Answer

Correct option: C.
$\mathrm{NH}_3+\mathrm{CaCO}_3$
Reaction:
$\mathrm{CaCN}_2+3 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{CaCO}_3+\mathrm{NH}_3$

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