Problem

Which of the following statements are true? a. Pure overlapping of two

d_{xy}

orbitals along

x

-axis results in the formation of

\pi

-bond b.

\text{NO}_2^+ > \text{NO}_3^- > \text{NO}_2^-

is the correct order of bond angle as well as N—O bond order c.

\text{NF}_3 < \text{NCl}_3 < \text{NBr}_3 < \text{NI}_3

is the correct order of Lewis basic character as well as bond angle d.

\text{HF} > \text{HCl} > \text{HBr} > \text{HI}

is the correct order of dipole moment as well as boiling point