Given below are two statements :
Statement (I) : Experimentally determined oxygen-oxygen bond lengths in the $\mathrm{O}_3$ are found to be same and the bond length is greater than that of a $\mathrm{O}=\mathrm{O}$ (double bond) but less than that of a single $(\mathrm{O}-\mathrm{O})$ bond.
Statement (II) : The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond $(\mathrm{O}=\mathrm{O})$ but more than that of a single bond $(\mathrm{O}-\mathrm{O})$.
In the light of the above statements, choose the correct answer from the options given below :
Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules [internuclear axis in $z$-direction] ?
A. $2 \mathrm{p}_{\mathrm{z}}$ and $2 \mathrm{p}_{\mathrm{x}}$
B. 2 s and $2 \mathrm{p}_{\mathrm{x}}$
C. $3 d_{x y}$ and $3 d_{x^2-y^2}$
D. 2 s and $2 \mathrm{p}_{\mathrm{z}}$
E. $2 p_z$ and $3 d_{x^2-y^2}$
Choose the correct answer from the options given below:
Which of the following statement is true with respect to $\mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3$ and $\mathrm{CH}_4$ ?
A. The central atoms of all the molecules are $\mathrm{sp}^3$ hybridized.
B. The $\mathrm{H}-\mathrm{O}-\mathrm{H}, \mathrm{H}-\mathrm{N}-\mathrm{H}$ and $\mathrm{H}-\mathrm{C}-\mathrm{H}$ angles in the above molecules are $104.5^{\circ}, 107.5^{\circ}$ and $109.5^{\circ}$, respectively.
C. The increasing order of dipole moment is $\mathrm{CH}_4<\mathrm{NH}_3<\mathrm{H}_2 \mathrm{O}$.
D. Both $\mathrm{H}_2 \mathrm{O}$ and $\mathrm{NH}_3$ are Lewis acids and $\mathrm{CH}_4$ is a Lewis base.
E. A solution of $\mathrm{NH}_3$ in $\mathrm{H}_2 \mathrm{O}$ is basic. In this solution $\mathrm{NH}_3$ and $\mathrm{H}_2 \mathrm{O}$ act as Lowry-Bronsted acid and base respectively.
Choose the correct answer from the options given below:
Match the List - I with List - II
| List - I (Classification of molecules based on octet rule) |
List - II (Example) |
||
|---|---|---|---|
| (A) | Molecules obeying octet rule | (I) | $\mathrm{NO}, \mathrm{NO}_2$ |
| (B) | Molecules with incomplete octet | (II) | $\mathrm{BCl}_3, \mathrm{AlCl}_3$ |
| (C) | Molecules with incomplete octet with odd electron | (III) | $\mathrm{H}_2 \mathrm{SO}_4, \mathrm{PCl}_5$ |
| (D) | Molecules with expanded octet | (IV) | $\mathrm{CCl}_4, \mathrm{CO}_2$ |
Choose the correct answer from the options given below: