Isostructural pairs among the following are a) ${BF}_3$ and ${NF}_3$ b) ${SO}_4^{2-}$ and ${CrO}_4^{2-}$ c) ${CO}_3^{2-}$ and ${NO}_3^{-}$ d) ${SF}_4$ and ${CF}_4$

JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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Analyzing +4 | -1

Isostructural pairs among the following are
a)

{BF}_3

and

{NF}_3

{SO}_4^{2-}

and

{CrO}_4^{2-}

{CO}_3^{2-}

and

{NO}_3^{-}

{SF}_4

and

{CF}_4

View answer and explanation

Correct option: C

B and C only

Option C (B and C only) is correct because

SO_4^{2-}

and

CrO_4^{2-}

are both tetrahedral, and

CO_3^{2-}

and

NO_3^-

are both trigonal planar.

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\mathrm{C}{\mathrm{O}_2}

\left( A \right)\mathrm{HgC}{\mathrm{l}_2},\left( B \right)\mathrm{N}{\mathrm{O}_2},\left( C \right)\mathrm{SnC}{\mathrm{l}_4},\left( D \right){\mathrm{C}_2}{\mathrm{H}_2}

{BF}_3

{BCl}_3

{BF}_3

{BCl}_3

{B}-X \pi