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Question

NH3 can't be obtained by :

A
heating of NH4NO3 or NH4NO2
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B
heating NH3CI or (NH4)2CO3
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C
heating of NH4NO3 with NaOH
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D
reaction of AIN or Mg3N2 or CaCN2 with H2O
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Solution

The correct option is B heating of NH4NO3 or NH4NO2
Reactions are:
NH4NO3N2O+H2O
NH4NO2N2+H2O
NH4ClNH3+HCl
NH4NO3(aq)+NaOH(s)NH3(g)+H2O(l)+NaNO3(aq)
CaCN2+3H2OCaCO3+NH3

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