NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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How many species do not exist?

\begin{aligned} & {PH}_3, {PH}_5, {PCl}_5, {PBr}_5, {SiF}_6^{2-}, {SF}_6,{Al}_2{F}_6, {PbI}_4, \\ & {NCl}_5, {AlCl}_3,{OF}_2, {OH}_2, {OF}_4, {HFO}_4, {FeI}_3, {B}_2 {F}_6 \end{aligned}

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Correct option: A

Option A (8) is correct because there are 8 species that do not exist due to various reasons such as exceeding the octet rule or steric hindrance.

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