WAEC Chemistry 2020 Theory — Question 6
Question 6 of 6 from the West African Examinations Council (WAEC) Chemistry 2020 Theory paper, with the correct answer and a full explanation.
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[Bonus item] State the effect of an aqueous solution of Al2(SO4)3 on litmus paper.
Model answer
An aqueous solution of Al2(SO4)3 (a salt of a strong acid and weak base) is acidic and would turn blue litmus paper red.
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