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  4. Among the following compounds, which on heating does not produce N2 ?

Q. Among the following compounds, which on heating does not produce N2 ?

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Solution:

$\left(\text{NH}\right)_{4}\text{Cl}+\left(\text{NaNO}\right)_{2} & → & \left(\text{NH}\right)_{4}\left(\text{NO}\right)_{2}+\text{NaCl} \\ \left(\text{NH}\right)_{4}\left(\text{NO}\right)_{2} & \overset{Δ}{→} & \left(\text{N}\right)_{2}↑+2\left(\text{H}\right)_{2}\text{O} \\ \text{Ba}\left(\left(\text{N}\right)_{3}\right)_{2} & → & \text{Ba}+3\left(\text{N}\right)_{2}↑ \\ 2\left(\text{NH}\right)_{4}\text{Cl}+\text{CaO} & → & \left(\text{CaCl}\right)_{2}+2\left(\text{NH}\right)_{3}↑+\left(\text{H}\right)_{2}\text{O} \\ \left(\left(\text{NH}\right)_{4}\right)_{2}\left(\text{Cr}\right)_{2}\left(\text{O}\right)_{7} & → & \left(\text{N}\right)_{2}↑+\left(\text{Cr}\right)_{2}\left(\text{O}\right)_{3 \left(\text{s}\right)}+4\left(\text{H}\right)_{2}\text{O}↑$

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