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Which of the following elements does not...

Which of the following elements does not show disproportionation tendency?

A

Cl

B

Br

C

F

D

I

Text Solution

Verified by Experts

The correct Answer is:
C
Being the most electronegative element, F can only be reduced and hence it always shows an oxidation number of -1. Further, due to the absence of d - orbitals it cannot be oxidised and hence it does not show positive oxidation numbers.
In other words, F cannot be oxidised as well as reduced simultaneously and hence does not show disproportionation reactions.
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