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:
Arrange the following compounds in increasing order of their dipole moment :
$\mathrm{HBr}, \mathrm{H}_2 \mathrm{~S}, \mathrm{NF}_3$ and $\mathrm{CHCl}_3$
The correct increasing order for bond angles among $$\mathrm{BF}_3, \mathrm{PF}_3$$ and $$\mathrm{ClF}_3$$ is :