Question

can any one answer question number 28

Answer 1

hey
here's your answer!!

group VA has the valency 3-.
so the valency of X is 3-

group VIA has the valency 2-
so the valency of Y is 2-

so criss crossing the valencies we get X2Y3 and Y3X2.

so the correct answer is X2Y3 as it is given in the option.

Hope it helps!!