P-Block Elements Ques 481
Question: Which of the following hydrides has the lowest boiling point
[MP PET 1997]
Options:
A) $ H_2O $
B) $ H_2S $
C) $ H_2Se $
D) $ H_2Te $
Show Answer
Answer:
Correct Answer: B
Solution:
$ H_2O $ $ 2NaOH+Cl_2\to NaClO+NaCl+H_2O $ $ H_2Se $ $ H_2Te $ 373K 213K 269K 232K $ H_2S $ has lowest boiling point and $ H_2O $ has highest boiling point because if any compound has hydrogen bond. Its boiling point is high.
