IGCSE O Level Chemistry Exam MCQs – Practice Test 4 (Chapter 12)
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MCQ 16: Consider the equation: Pb+2 (aq) + 2OH- (aq) → Pb(OH)2 (s). The precipitate of lead (II) hydroxide will be of:
MCQ 17: The hydrogen of acids is replaced by:
MCQ 18: In order to test the presence of Sulphates,:
MCQ 19: Number of acid salt formed by HCl is:
MCQ 20: Which of them is an insoluble salt?
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