O Level Chemistry MCQs – Certification Test 490

Exothermic Reactions MCQs (Question 490) – Study App & e-Book Download

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MCQ 490: Upon heating either of the carbonate, hydroxide or nitrate, a common byproduct is:

Heat
water vapors
oxides of same compounds
carbon dioxide

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Exothermic Reactions MCQs App & e-Book – O Level Chemistry Placement Tests

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Distillation and Purification Process Test 502

Chemical to Electrical Energy Test 503

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Electrolyte and Non Electrolyte Test 505

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Percent Composition of Elements Test 507

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