Question

Which one of the following conversions involve change in both hybridization and shape?

• A. $NH_3 \to NH_4^+$
• B. $CH_4 \to C_2H_6$
• C. $H_2O \to H_3O^+$
• D. $BF_3 \to BF^-_4$

Answer 1

Answer: (D)

$BF_3 \to BF^-_4$

Answer 2

Thus, conversion of $BF _{3}$ into $BF _{4}^{-}$ involves change in both hybridisation and shape.