Question

Predict the correct order among the following:

• A. lone pair-lone pair > bond pair-bond pair > lone pair - bond pair
• B. bond pair - bond pair > lone pair - bond pair > lone pair - lone pair
• C. lone pair - bond pair > bond pair - bond pair > lone pair - lone pair
• D. lone pair - lone pair > lone pair - bond pair > bond pair - bond pair

Answer 1

Answer: (D)

lone pair - lone pair > lone pair - bond pair > bond pair - bond pair

Answer 2

According to V.S.E.P.R.T lone-lone pair repulsion is maximum because lone pair electron held by nuclei of one atom there for occupy more space.
Repulsion $\Rightarrow$ lone pair-lone pair > lone pair-bond pair > bond pair-bond pair