Which of the following statement is true with respect to $\mathrm{H}_{2} \mathrm{O}, \mathrm{NH}_{3}

Question

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 $s p^{3}$ 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:\

Professor PC Thomas Classes · Answer

(c) : $\mathrm{H}_{2} \mathrm{O}$ and $\mathrm{NH}_{3}$ act as Lewis bases as both can donate electrons.\ \ Statements A, B and C are correct.