Q11Written answer
Which of the following elements does not show disproportionate tendency?
(i) Cl
(ii) Br
(iii) F
(iv) I
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Worked solution
Ans: As, Cl, Br, I all are having -1 to +7 oxidation state. But Oxidation state of F is fixed (-1) as it is the most electronegative element and do not loose electron. Hence, it does not show disproportionate tendency. Hence, option(iii) is the correct answer.