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Question

Chemistry Question on Hybridisation

Which of the following is not tetrahedral?

A

BF4−BF_{4}^{-}

B

NH4+NH_{4}^{+}

C

CO32−CO_{3}^{2-}

D

SO42−SO_{4}^{2-}

Answer

CO32−CO_{3}^{2-}

Explanation

Solution

In CO32−CO _{3}^{2-} ion, the C-atom undergoes sp2s p^{2} hybridisation. It has triangular planar structure while BF4−,NH4+BF _{4}^{-}, NH _{4}^{+}and SO42−SO _{4}^{2-} have tetrahedral structure.