Question

Question 10

In which of the following melecule/ion all the bonds are not equal?

(a) $Xe{F}_4$

(b) $B{F}_4^{-}$

(c) $C_2{H}_4$

(d) $Si{F}_4$

Answer 1

Answer: (c) $C_2{H}_4$

$Xe{F}_4\Rightarrow$ 4 bp + 2 Ip $\Rightarrow$ sqare planr $\Rightarrow$ all bonds are equal

$B{F}_4^{-}$$\Rightarrow$ 4bp + 0 Ip $\Rightarrow$ tetrahedral (all bonds are equal)

$Si{F}_4$ $\Rightarrow$ 4 bp + 0 Ip $\Rightarrow$ tetrahedral (all bonds are equal)

Thus, in $C_2{H}_4$ all the bonds are not equal.