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Consider the following compounds: 1. (...

Consider the following compounds:
1. `(NH_(4))_(2)Cr_(2)O_(7)` 2. `NH_(4)NO_(2)` 3. `NH_(4)VO_(3)` 4. `NH_(4)NO_(3)`
Which compound (s) yield nitrogen gas upon heating ?

A

1 and 2

B

2 and 3

C

3 and 4

D

1 and 4

Text Solution

Verified by Experts

The correct Answer is:
A
Only `(NH_(4))_(2) Cr_(2)O_(7) and NH_(4)NO_(2)` given `N_(2)` on heating.
(i) `(NH_(4))_(2)Cr_(2)O_(7) overset(Delta)rarr Cr_(2)O_(3) + 4H_(2)O + N_(2)`
(ii) `MH_(4)NO_(2) underset(Delta)overset("Thermal decomposition")rarr 2 H_(2)O + N_(2)`
`therefore` (a) is the correct option.
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