Problem

Consider following compounds A to E. (A)

\text{XeF}_n

(B)

\text{XeF}_{(n+1)}^+

(C)

\text{XeF}_{(n+1)}^-

(D)

\text{XeF}_{(n+2)}

(E)

\text{XeF}_{(n+4)}^{2-}

, If value of

n

is 4, then calculate value of "

p + q

" here, '

p

' is total number of bond pair and '

q

' is total number of lone pair on central atoms of compounds A to E.