Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)?
(1) H2S < H2O < H2Se < H2Te < H2Po
(2) H2O < H2S < H2Se < H2Te < H2Po
(3) H2Po < H2Te < H2Se < H2S < H2O
(4) H2Se < H2Te < H2Po < H2O < H2S
If you are commenting for the first time, please read the guidelines.
If you are answering for the first time, please read the guidelines.
Ans : (3) H2Po < H2Te < H2Se < H2S < H2O
On going down the group thermal stability order for H2E decreases,
because H-E H-E bond energy decreases.
Hence, order of stability would be
H2Po < H2Te < H2Se <H2S < H2O
Welcome to Jee Neet QnA, where you can ask questions and receive answers from other members of the community.
Join our Telegram group for live discussion.
Subscribe our YouTube channel for video solutions with explanation.
Download Jee Neet QnA Books in PDF for offline learning.