TS EAMCET · Chemistry · d and f Block Elements
The products formed during thermal decomposition of ammonium dichromate are
- A \(\mathrm{O}_2, \mathrm{H}_2 \mathrm{O}, \mathrm{Cr}(\mathrm{OH})_3\)
- B \(\mathrm{NO}_2, \mathrm{H}_2 \mathrm{O}, \mathrm{Cr}_2 \mathrm{O}_3\)
- C \(\mathrm{N}_2, \mathrm{Cr}_2 \mathrm{O}_3, \mathrm{H}_2 \mathrm{O}\)
- D \(\mathrm{N}_2 \mathrm{O}, \mathrm{Cr}(\mathrm{OH})_3\)
Answer & Solution
Correct Answer
(C) \(\mathrm{N}_2, \mathrm{Cr}_2 \mathrm{O}_3, \mathrm{H}_2 \mathrm{O}\)
Step-by-step Solution
Detailed explanation
(c) The thermal decomposition of ammonium dichromate produces nitrogen gas, chromium (III) oxide and water vapour. \(\left(\mathrm{NH}_4\right)_2 \mathrm{Cr}_2 \mathrm{O}_7 \stackrel{\Delta}{\longrightarrow} \mathrm{N}_2+\mathrm{Cr}_2 \mathrm{O}_3+4 \mathrm{H}_2 \mathrm{O}\)
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