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Question

The reaction of which halogens with water is
endothermic :
$F_{2}$
${C l}_{2}$
$I_{2}$
$B r_{2}$

A

F_{2}

B

I_{2}

C

{C l}_{2}

D

B r_{2}

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Solution

Verified by Toppr

Bond dissociation + Hydration energy = Energy of $I_{2}$ = +ve.
So heat is required.

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Similar Questions

Q1

The reaction of which halogens with water is
endothermic :

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Q2

Arrange the halogens

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

in order of their increasing reactivity with alkanes.

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Q3

Consider the following orders –
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F_{2} > C l_{2} > B r_{2} > I_{2} :

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(2)

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

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

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(4)

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

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(5)

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

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

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(7)

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

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

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Then calculate

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

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Q4

Order of reactivity towards halogenation is

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

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State True or False.

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Q5

Bond energy of different halogen molecules will lie in the sequence

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

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