IGCSE O Level Chemistry Exam MCQs – Practice Test 20 (Chapter 1)
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MCQ 96: Consider the equation ZnO + NaOH + H2O → Na2Zn(OH)4. Moles of product required to balance the equation would be:
MCQ 97: Vinegar has a pH of:
MCQ 98: Alkalis turn Universal indicators:
MCQ 99: Oven Cleaner has a pH of:
MCQ 100: Consider the equation Al2O3 + NaOH + H2O →NaAl(OH)4. Moles of product required to balance the reaction would be:
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