An electron-deficient compound among the following is:

In $P{O}_4^{-3}$, formal charge on every oxygen atom and P-O bond order respectively are:
1.  -0.75 and 1.25
2.  -0.5 and 2
3.  1 and 1.5
4.  -0.75 and 2

In NO₃^– ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:

Correct Lewis structure of the nitrite ion, \(NO_{2}^{-}\) among the following is:

1.		2.
3.		4.	None of the above

The decreasing order of ionic character of the N-H, F-H, C-H, and O-H, is :  

The right order of increase in the ionic character of the molecules,
 LiF, K₂O, N₂, SO₂, ClF₃ is :

1. N₂ < SO₂ < ClF₃ < K₂O < LiF

2. N₂ > SO₂ > ClF₃ > K₂O < LiF

3. N₂ > SO₂ > ClF₃ > K₂O > LiF

4. LiF > K₂O < ClF₃ > SO₂ > N₂

Which one of the following statements is true about the structure of \(CO^{2-}_3\) ion?