O Level Chemistry MCQs – Certification Test 180

Endothermic Reactions Quiz (Question 180) – App & e-Book Download

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MCQ 180: On burning, hydrogen is changed into:

hydroxides
water vapors
dilute acids
hydrogen gas

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Endothermic Reactions Quiz App & e-Book – O Level Chemistry Learning Guide

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Electrolyte and Non Electrolyte Test 193

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