JAMB Chemistry 2013 Objective — Question 34

Question 34 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2013 Objective paper, with the correct answer and a full explanation.

Sulphur(IV) oxide is a strong reducing agent in the presence of water due to the formation of

A. hydrogen sulphide
B. trioxosulphate (IV) ionCorrect
C. hydroxide ion
D. sulphur (IV) oxide

Explanation

Sulphur(IV) oxide is a good reducing agent in water, as it produces trioxosulphate(IV) ion in solution — a species that readily donates electrons to potential oxidizing agents.

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