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Which of the following statement(s) is/are not true about the following decomposition reaction ? 2KCIO3 →2KCl + 3O 2 (a) Potassium is undergoing oxidation. (b) Chlorine is undergoing oxidation. (c) Oxygen is reduced. (d) None of the species are undergoing oxidation or reduction.

Which of the following statement(s) is/are not true about the following decomposition reaction ?
2KCIO3 →2KCl + 3O2
(a) Potassium is undergoing oxidation.
(b) Chlorine is undergoing oxidation.
(c) Oxygen is reduced.
(d) None of the species are undergoing oxidation or reduction.

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1 Answers

Arun
25750 Points
5 years ago

(a, b, c, d) Writing the oxidation number of each element above its symbol,

(a) The O.N. of K does not change, K. undergoes neither reduction nor oxidation. Thus, option (a) is not correct.
(b) The O.N. of chlorine decreases from +5 in KClO3 to -l in KCl, hence, Cl undergoes reduction.
(c) Since, O.N. of oxygen increases from -2 in KClOto 0 in O2, oxygen is oxidized.
(d) This statement is not correct because Cl is undergoing reduction and O is undergoing oxidation.

 

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