JAMB Chemistry 2021 Objective — Question 35

Question 35 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

A metal X forms soluble trioxosulphate(iv) salt. The metal X is

A. Aluminium
B. Barium
C. PotassiumCorrect
D. Manganese

Explanation

Generally, all sodium, potassium and ammonium salts are soluble. Potassium sulphite (K₂SO₃) is soluble. BaSO₃ is insoluble; Al₂(SO₃)₃ hydrolyses; MnSO₃ is insoluble.

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