Question

Which has minimum bond angle?

• A. $\text{NH}_3$
• B. $\text{H}_2\text{O}$
• C. $\text{PH}_3$
• D. $\text{H}_2\text{S}$
• E. $\text{SO}_2$

Hint:

Drago's rule is a powerful shortcut. When the central atom is from the 3rd period or lower (like P, S, As, Se) and is bonded to a less electronegative atom like Hydrogen, assume no hybridization. The bond angles will be very close to $90^\circ$, making them smaller than any comparable $sp^3$ hybridized molecule from the 2nd period.

Answer 1

The Correct Option is D