Q.

The reactivity of halogens towards first-row transition elements follows the order

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a

F <Br>Cl

b

F>Cl>Br

c

  F>Cl<Br


 

d

 F<Cl<Br

answer is A.

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Detailed Solution

Reactivity falls off as a group moves down. So F>Cl>Br is the proper order.

The reactivity of halogens decreases with increase in atomic number of halogens. So the correct order of reactivity of halogens is F>Cl>Br.

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