JAMB Mathematics 2022 Objective — Question 36

Question 36 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

The oxidation states of chlorine in HOCl, HClO₃ and HClO₄ are respectively

A. +1, +3, +5
B. +1, +5, +7Correct
C. −1, +5, +7
D. −1, −5, +7

Explanation

HOCl: H(+1) + O(−2) + Cl = 0 → Cl = +1. HClO₃: Cl = +5. HClO₄: Cl = +7. Oxidation states are +1, +5, +7.

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