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p-Block Elements – II — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12Chemistryp-Block Elements – II2 Marks
Question
Explain the action of heat on ammonia.
✓

Answer

Above $500^{\circ} C$ ammonia decomposes into its elements. The decomposition may be accelerated by metallic catalysts like Nickel, Iron. Almost complete dissociation occurs on continuous sparking.
$
2 NH _3 \underset{500^{\circ} C N _2}{\longrightarrow}+3 H _2
$

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