A molecule among the following that has the maximum dipole moment is:

1.	\(\mathrm{CO_2}\)	2.	\(\mathrm{CH_4}\)
3.	\(\mathrm{NH_3}\)	4.	\(\mathrm{NF_3}\)

Which one of the following species has a plane triangular shape?

An electron-deficient compound among the following is:

Which of the following is a polar molecule?

A paramagnetic molecule among the following is:

Isostructural pair among the following is:

1. ${\mathrm{BCl}}_3$ $\mathrm{and}$ ${\mathrm{BrCl}}_3$

2. ${\mathrm{NH}}_3$ $\mathrm{and}$ ${\mathrm{NO}}_3^{-}$

3. ${\mathrm{NF}}_3$ $\mathrm{and}$ ${\mathrm{BF}}_3$

4. ${\mathrm{BF}}_4^{-}$ $\mathrm{and}$ ${\mathrm{NH}}_4^{+}$

The bond order of 1.5 is shown by:  

Identify the wrong statement among the following.