Question

The molecular ion $X{F}_2$ has three pairs of non-bonding electrons around the central atom. The bond angle $F-X-F$ will be closest to:

• A. ${180}^o$
• B. ${120}^o$
• C. ${109}^o$
• D. ${90}^o$

Answer 1

Answer: (A)

${180}^o$

The molecular ion $X{F}_2$ has three pairs of non-bonding electrons around the central atom. The bond angle $F-X-F$ will be closest to ${180}^0$
Two pairs of bonding electrons and three pairs of non-bonding electrons around the central atom corresponds to $s{p}^{3}d$ hybridisation with electron geometry linear and molecular geometry linear.