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Introduction

Which halogen...

Question

Which halogen reacts only partially with hydrogen even at high temperature and in the presence of a catalyst?

F_{2}

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{C l}_{2}

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B r_{2}

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I_{2}

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Solution

The correct option is D $I_{2}$
Reactivity order of halogens:
$F_{2} > C l_{2} > B r_{2} > I_{2}$
There is small difference in electronegativity of hydrogen and iodine. So, it does not readily react with hydrogen whereas other halogens do.

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Similar questions

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

B r_{2}

N a F, N a C l & N a I

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

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}

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