Which of the following molecules does not have co-ordinate bonds?

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

Which of the following molecules does not have co-ordinate bonds? (1)

\text{PH}_4^+

(2)

\text{NO}_2

(3)

\text{O}_3

(4)

\text{CO}_3^{2-}