1.

How manycompounds liberate NH_(3) on heatingfromthe following ? (NH_(4))_(2)SO_(4),(NH_(4))_(2)CO_(3),NH_(4)CI,NH_(4)NO_(3),(NH_(4))_(2)Cr_(2)O_(7)

Answer»


Solution :`(NH_(4))_(2)SO_(2),(NH_(4))_(2)CO_(3) and NH_(4)CI` gives `NH_(3)` on HEATING an shown
i. `2(NH_(4))_(2)SO_(4) overset(Delta) to underset("Ammoniumpyrrosulphate")((NH_(4))_(2) S_(2)O_(7)) + 2NH_(3) +H_(2)O`
`3(NH_(4))_(2) S_(2)O_(7) overset(Delta)(to)2NH_(3) + 6SO_(2) + 2N_(2) + 9H_(2)O`
iii. `NH_(4)CI overset(Delta) to NH_(3) + HCI`
`NH_(4)NO_(3)` and` (NH_(4))_(2)S_(2)O_(3)` on heating gives `N_(2)O`and `N_(2)` respectively as shown
iv
V. `(NH_(4))_(2)S_(2)O_(7) overset(Delta)(to) N_(2) + Cr_(2)O_(3) + 4H_(2)O`


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