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How is nitrogen prepared from ammonia ? |
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Answer» Solution :`NH_(3)` is first treated with DIL. HCl and the ammonium chloride thus formed is treated with an aqueous solution of sodium nitrite when `N_(2)` gas is EVOLVED. `{:(""NH_(3)(G) + HCl (aq) rarr NH_(4)Cl(aq)),(NH_(4)Cl(g) + NaNO_(2)(aq) rarr NH_(4)NO_(2) (aq) + NaCl(aq)),(""NH_(4)NO_(2)(aq) overset(DELTA)rarr N_(2)(g) + 2 H_(2) O (l)):}` |
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