JEE Main Chemistry question

Which two ions from the list NO_2^-, NO_3^-, NH_2^-, NH_4^+, SCN^- have a geometry explained by the same hybridization of orbitals?

(A) and
(B) and Correct
(C) and
(D) and

Answer: (B)

Solution

has nitrogen with 2 bond regions and 1 lone pair, giving hybridization (bent shape); has nitrogen with 3 bond regions delocalised by resonance and no lone pair, also giving hybridization (trigonal planar).

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Question ID VK-133488