MCQ
Which reaction involves a change in the electron pair geometry for the underlined element ?
- ✓$\underline B{F_3} + {F^ - } \to B{F_4}^ - $
- B$\underline N {H_3} + {H^ + } \to \underline N H_4^ + $
- C$2\underline S {O_2} + {O_2} \to 2\underline S {O_3}$
- D${H_2}\underline O + {H^ + } \to {H_3}{\underline O ^ + }$
