Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Statement-1 is correct. The bond angle in ${\text{NH}}_3$ is approximately $107.8^{\circ }$, while in ${\text{PH}}_3$ it is approximately $93.5^{\circ }$. Statement-2 is incorrect. The higher electronegativity of nitrogen pulls the bond pairs closer to the central atom, increasing bond pair-bond pair repulsion and thus increasing the bond angle. In ${\text{PH}}_3$, due to lower electronegativity of P, bond pairs are farther from P, and the bond angle is closer to $90^{\circ }$ (Drago's rule applies to some extent, where lone pair-bond pair repulsion is less significant due to larger size and diffuse orbitals).