JAMB Mathematics 2022 Objective — Question 12

Question 12 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Commercial bleaching can be carried out using

A. Ammonia and chlorine
B. Sulphur(iv) oxide and ammonia
C. Chlorine and sulphur(iv) oxideCorrect
D. Hydrogen sulphide and chlorine

Explanation

Chlorine (Cl₂) bleaches by oxidation; sulphur(iv) oxide (SO₂) bleaches by reduction. Both are used as bleaching agents commercially.

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