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ChemistryComplete Pblock-p-Block 17,18Medium2 minPYQ_2021

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The correct order of bond dissociation enthalpy of halogens is:

Answer:

Solution:

Correct order of bond dissociation enthalpy of halogens is ${Cl}_{2} > {Br}_{2} > F_{2} > I_{2}$ .

Due to inter electronic repulsions $F - F$ bond becomes weak and easily broken.

Bond dissociation energy of halogen family decreases down the group as the size of atom increases.

Stream:JEESubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18

⏱ 2mℹ️ Source: PYQ_2021

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