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Physical Properties of Alkenes

Which one of ...

Question

Which one of the following orders is not in accord with the property stated against it?

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

; Oxidising power

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H I > H B r > H C l > H F

; Acidic property in water

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

; Electronegativity

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

; Bond dissociation energy

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Solution

The correct option is C $F_{2} > C l_{2} > B r_{2} > I_{2}$ ; Bond dissociation energy
The bond dissociation energies of $I_{2}$ , $B r_{2}$ and $C l_{2}$ increase in the following order:
$I_{2}$ < $B r_{2}$ < $C l_{2}$

In case of $F_{2}$ , the bond dissociation energy is lower than that of $C l_{2}$ and $B r_{2}$ because of the existence of strong inter-electronic repulsions owing to its small size. The overall trend of bond dissociation energies is thus as follows:
$I_{2}$ < $F_{2}$ < $B r_{2}$ < $C l_{2}$

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}, I_{2}

H F, H C l, H B r, H I

N H_{3}, P H_{3}, A s H_{3}, S b H_{3}, B i H_{3}

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

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}

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