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Considering the elements F, Cl, O and N, the correct order of their chemical reactivity in terms of oxidizing property is

3.40   Considering the elements F, Cl, O and N, the correct order of their chemical reactivity in terms of oxidizing property is :

         (a) F > Cl > O > N

         (b) F > O > Cl > N

         (c) Cl > F > O > N

         (d) O > F > N > Cl
 

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Answer - (b) F>O>Cl>N

The oxidizing property of elements increases from left to right across a period because of the presence of vacant d-orbitals in their valence shells.

Thus, we get the decreasing order of oxidizing property as F>O>N.

And the oxidizing character of elements decreases down a group. Thus we get F>Cl.

However, the oxidizing character of Oxygen is more than that of Chlorine.

So, O>Cl.

Hence the correct order their chemical reactivity in terms of oxidizing property is :

F>O>Cl>N.

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