Among the following species, the one that has the highest bond energy is:

1. ${\mathrm{N}}_2^{+}$

2. ${\mathrm{O}}_2$

3. ${\mathrm{CO}}^{+}$

4. ${\mathrm{N}}_2$

${\mathrm{N}}_2$ and ${\mathrm{O}}_2$ are converted to monocations ${\mathrm{N}}_2^{+}$ and ${\mathrm{O}}_2^{+}$ respectively. Which of the following is incorrect?

1. In ${\mathrm{N}}_2^{+}$, the $\mathrm{N}-\mathrm{N}$ bond weakens.

2. In ${\mathrm{O}}_2^{+}$, the $\mathrm{O}-\mathrm{O}$ bond order increases.

3. In ${\mathrm{O}}_2^{+}$, the paramagnetism decreases.

4. ${\mathrm{N}}_2^{+}$ becomes diamagnetic.

The bond angles of \(\mathrm{NH}_3, \mathrm{NH}^+_4~\mathrm{and}~\mathrm{NH}^-_2\) are in the order : 

Which of the following has a maximum 'Cl-O' bond order?

1. ${\mathrm{ClO}}_3^{-}$

2. ${\mathrm{ClO}}_3$

3. ${\mathrm{ClO}}_2$

4. ${\mathrm{ClO}}_2^{-}$

In which of the following compounds is an intramolecular hydrogen bond present?

The pair of electrons in the given carbanion, CH₃C≡C^-, is present in which of the following orbitals?

The incorrect statement among the following regarding the molecules of CH_4, NH₃, and H₂O is:

Which among the following species has a triangular planar shape?

Paramagnetic species among the following is:

1. CO               

2. ${\mathrm{O}}_2^{-}$

3. CN^-               

4. NO⁺

The correct order of solubility in an aqueous medium is: 

1. CuS > ZnS > Na₂S

2. ZnS > Na₂S > CuS

3. Na₂S > CuS > ZnS

4. Na₂S > ZnS > CuS