STANDARD Chemistry Group 16 Elements MCQ Question
Arrange the following hydrides of group 16 elements in order of increasing stability.
H₂S < H₂O < H₂Te < H₂Se
H₂O < H₂Te < H₂Se < H₂S
H₂O < H₂S < H₂Se < H₂Te
H₂Te < H₂Se < H₂S < H₂O
Correct Answer
Detailed Explanation
There is a decrease in bond enthalpy (H–E) as the size of the element increases on moving down the group; hence, the stability decreases on moving down the group.
Found an issue with this question?
Related Questions
More from Periodic Table
The order of size of metal ions is, Li⁺ < Na⁺ < K⁺ < Rb⁺ < Cs⁺ Since the hydration energy is inversely proportional to the size. So, the order of hydr...
Fluorine is the most electronegative element, it shows only (-1) state therefore fluorine will not undergo disproportionation.
Assertion: Ionisation enthalpy of beryllium is higher than that of boron. Reason: Across the period, from left to right, ionization enthalpy decrease...