First slide

Chemical properties

Question

The wrong match among the following is

Easy

A

Boiling point–HCl < HBr < HI < HF
B

Acidic strength –HF < HCl < HBr < HI
C

Thermal stability –HF > HCl > HBr > HI
D

Bond dissociation energy–HCl < HBr < HI < HF

Solution

As the atomic size increases in hydrogen halides,
Bond length -HF<HCl<HBr<HI;
So bond dissociation energy–Hl < HBr < HCl < HF;

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