Decreasing order of stability of hydrogen halide is | Chemistry | SolveeIt

Question

Decreasing order of stability of hydrogen halide is

$HF > HCl > HBr > HI$

$HF < HCl < HBr < HI$

$HP > HCl < HBr = HI$

$HF > HCl = HBr > HI$

Answer

$HF > HCl > HBr > HI$

Explanation

Solution

The thermal stability of hydrogen halide decreases from $HF$ to $HI$ .
$HF$ is the most stable whereas $HI$ is least stable. The decrease in stability of the hydrides is due to decrease in bond strength which decreases on moving downward in the group. Hence, decreasing order of stability of hydrogen halide is
$HF > HCl > HBr > HI$

Chemistry Question on p -Block Elements

Solution