Verified Solution • 2025–26 Session
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QNEET-2019-Ch-752: NEET 2019 Chemistry - Class 12 NEET-2019-Ch-752 Solution: Which is the correct thermal stability order for \(H_2E\) (E =…
Which is the correct thermal stability order for (E = O S Se Te and Po)?
Multiple Choice Options
- A H 2 Po < H 2 Te < H 2 Se < H 2 S < H 2 O
- B H 2 Se < H 2 Te < H 2 Po < H 2 O < H 2 S
- C H 2 S < H 2 O < H 2 Se < H 2 Te < H 2 Po
- D H 2 O < H 2 S < H 2 Se < H 2 Te < H 2 Po
Step-by-Step Verified Solution
The thermal stability of hydrides decreases
down the group due to decrease in bond
dissociation energy down the group.
Therefore,
thermal stability order will be :
H 2 Po < H 2 Te < H 2 Se < H 2 S < H 2 O