Identify the correct order of acidity of hydrides of 16^ th group elements from the following.

Step-by-step solution

The acidity of hydrides of Group 16 elements increases down the group. This trend arises due to decreasing bond dissociation enthalpy of the E–H bond as atomic size increases from oxygen to tellurium. Atomic radii follow O S–H > Se–H > Te–H. Weaker E–H bonds facilitate proton donation, making the hydrides more acidic down the group. The acidity order is H₂O H₂Se > H₂S > H₂O . Among the options, only C matches this sequence. Final answer: C