The significance of the octet rule is:

1. To determine the stability of atoms.
2. To find the hybridization of elements.
3. To calculate the number of lone pairs.
4. None of the above.

The incorrect statement among the following is:

Which of the following is the correct lewis dot structure for acetic acid?

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

According to Valence Bond Theory, H₂ molecule formation is favoured when:

Hybridization of C₁ and C₂  in the structure given below are

1. ${\mathrm{C}}_1<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{sp}}^3<mspace\; width="1em"></mspace>,<mspace\; width="1em"></mspace>{\mathrm{C}}_2=<mspace\; width="1em"></mspace>{\mathrm{sp}}^2$

2. ${\mathrm{C}}_1<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{sp}}^3<mspace\; width="1em"></mspace>,<mspace\; width="1em"></mspace>{\mathrm{C}}_2=<mspace\; width="1em"></mspace>{\mathrm{sp}}^3$

3. ${\mathrm{C}}_1<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{sp}}^2<mspace\; width="1em"></mspace>,<mspace\; width="1em"></mspace>{\mathrm{C}}_2=<mspace\; width="1em"></mspace>{\mathrm{sp}}^3$

4. ${\mathrm{C}}_1<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>{\mathrm{sp}}^2<mspace\; width="1em"></mspace>,<mspace\; width="1em"></mspace>{\mathrm{C}}_2=<mspace\; width="1em"></mspace>{\mathrm{sp}}^2$

Consider the following structure.

The hybridization of C₁, and C₂ carbon in the structure are -

1. $C_1$ = ${\mathrm{sp}}^2$ , ${\mathrm{C}}_2$ =  $s{p}^2$

2. $C_1$ = ${\mathrm{sp}}^3$ , ${\mathrm{C}}_2$ = ${\mathrm{sp}}^3$

3. $C_1$ = ${\mathrm{sp}}^3$ , ${\mathrm{C}}_2$ = ${\mathrm{sp}}^2$

4. None of the above

The number of resonating structures exhibited by \(CO^{2-}_3\) ion are :

The condition(s) required for the linear combination of atomic orbital is :

The following graph captures potential energy on the y-axis for hydrogen gas formation as a function of the internuclear distance on the x-axis:
        
The bond energy of H₂ can be represented by:

BF₃ is a planar and an electron deficient compound. Hybridization and number of electrons around the central atom, respectively are: