Multiple choice

Which of the following is not correctly matched?

  1. Bond length: HF < HCl < HBr < HI

  2. Bond dissociation energy: HF > HCl > HBr > HI

  3. Reducing power: HF < HCl < HBr < HI

  4. Boiling point: HF < HCl < HBr < HI

  5. Acidic strength: HF < HC < HBr < HI
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Boiling point: HCl < HBr < HI < HF Boiling point increases with increase in atomic weights of halogens due to increase in the Van der Waal’s forces. However, boiling point of HF is the highest due to presence of hydrogen bonding.

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