Q4 / 90 · JEE Main 2017 (09 Apr Online) · Chemistry

The group having triangular planar structure is:

A
${BF}_{3}, {NF}_{3}, {CO}_{3}^{2 -}$
Correct answer
B
${CO}_{3}^{2 -}, {NO}_{3}^{-}, {SO}_{3}$
C
${NH}_{3}, {SO}_{3}, {CO}_{3}^{2 -}$
D
${NCl}_{3}, {BCl}_{3}, {SO}_{3}$

Solution

{CO}_{3}^{- 2}, {NO}_{3}^{-}, {SO}_{3} : plane triangular shape

. Central atom in all these three species is sp² hybridized, without any lone pairs on the central atom.

Hence, the correct answer is option: 'B'.

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