Question

(i) The bond angles (O-N-O) are not of the same value in NO₂- and NO₂+.
(ii) BiH₃ is the strongest reducing agent amongst all the hydrides of group 15 elements.
(iii) Ammonia has greater afnity for protons than phosphine.

Answer 1

[Hint : (i) Due to presence of lone pair of electron on N in NO₂^-
(ii) Bi^-H bond dissociation enthalpy is least and releases hydrogen mosteasily.
(iii) NH₃ is stronger Lewis base than PH₃.]