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Heat of Reaction

What is the c...

Question

What is the correct order of bond dissociation enthalpies?

F_{2} > C l_{2} > B r_{2} > I_{2}

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C l_{2} > F_{2} > B r_{2} > I_{2}

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C l_{2} > B r_{2} > F_{2} > I_{2}

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I_{2} > B r_{2} > C l_{2} > F_{2}

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Solution

The correct option is C $C l_{2} > B r_{2} > F_{2} > I_{2}$
$C l_{2} > B r_{>} F_{2} > I_{2}$
$C l_{2} \to$ Maximum bond strength because effective overlap and moderate L.P - L.P repulsion
$B r_{2} \to$ Overlap less effective as compared to $C l_{2}$ and minimum L.P - L.P repulsion, but overlap is a dominating factor.
$F_{2} \to$ Effective overlap and maximum L.P - L.P. repulsion makes it weaker than $C l_{2}$ and $B r_{2}$ .
$I_{2} \to$ Least effective overlap.

Suggest Corrections

Similar questions

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

H O C l > H C l O_{2} > H C l O_{3} > H C l O_{4} :

H O C l > H C l O_{2} > H C l O_{3} > H C l O_{4} :

(x^{2} + y^{2})

x

y

F_{2}, C l_{2}

B r_{2}

F_{2}, C l_{2}, B r_{2}, I_{2}

I_{2}, {B r}_{2}, {C l}_{2}, F_{2}

I_{2} < {B r}_{2} < {C l}_{2} < F_{2}

F_{2} > C l_{2} > B r_{2} > I_{2}

F_{2} > C l_{2} > B r_{2} > I_{2}

C l > F > B r > I

F > C l > B r > I

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