MCQ
Lassaigne's test for the detection of nitrogen fails in
- A$N{H_2}CONHN{H_2}.HCl$
- ✓$N{H_2}N{H_2}.HCl$
- C$N{H_2}CON{H_2}$
- D${C_6}{H_5}NHN{H_2}.HCl$
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$O(g) + e^- \to O^-(g); \Delta H = - 142 \,kJ \,mol^{-1}$
$O^-(g) + e \to O^{2-} (g); \Delta H = 844\, kJ \,mol^{-1}$
This is because