Q

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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