MCQ
Fluorine has low electron affinity than chlorine because of
- ✓Smaller radius of fluorine, high density
- BSmaller radius of chlorine, high density
- CBigger radius of fluorine, less density
- DSmaller radius of chlorine, less density
There are strong interelectronic repulsions in the relatively compact $2 p$ subshell of fluorine. Hence, the incoming electron does not feel much attraction.
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$N{H_3}(g) \rightleftharpoons \frac{1}{2}{N_2}\left( g \right) + \frac{3}{2}{H_2}(g);{K_p}$
The degree of dissociation $(\alpha )$ of $NH_3$ is related to total equilibrium pressure $(P^o)$ as