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Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

(a) Br2 > I2 > F2 > Cl2 

(b) F2 > Cl2 > Br2 > I2

(c) I2 > Br> Cl2 > F2 

(d) Cl2 > Br2 > F2 > I2

1 Answer

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Best answer

Correct option (d) Cl2 > Br2 > F2 > I2

Explanation :

The order of bond dissociation enthalpy is :

Cl2 > Br2 > F2 > I2

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