Answer:
(i) is
more acidic than As
we go down the group, electro negativity decreases hence stability of (H?X)
bond decreases. Thus tendency of the (H?X) to release increase.
Thus, with weak
(H?S) bond is more acidic than
[1]
(ii)
In two resonating
structures and in three
resonating structures are formed. Thus (N?O) bond length in is
shorter than that in .
(iii)
Fluorine is the most electronegative element with valency (-1). It stabilises
the metal ion by single bond formation as inOxygen
forms multiple bonds with metals and stabilises the compound to a greater
extent.
is stable
due to multiple bonds.
[1]
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