IGCSE O Level Chemistry MCQs – Practice Test 1 (Chapter 7)

Energy from Chemicals MCQs with Answers PDF Download – Test 1

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Energy from Chemicals MCQs with Answers PDF Download: MCQ Quiz 1

MCQ 1: Conversion of carbonate into oxides and carbon dioxide is called as:

combustion
Thermal decomposition
Neutralization
Respiration

MCQ 2: Conversion of Copper Hydroxide (Cu(OH)₂) into Copper Oxide (CuO) and water (H₂O) is an example of:

combustion
Thermal decomposition
Neutralization
Respiration

MCQ 3: In exothermic reactions, the final energy content of products is:

lower than the energy contents of the reactants
higher than the energy contents of the reactants
not depend upon the energy content of the reactants
none of above

MCQ 4: Upon heating, sodium nitrate NaNO₃_(s) gets converted into:

sodium oxide
nitric acid
sodium hydrogen oxide
none of above

MCQ 5: Liquefied Petroleum Gas (LPG) is obtained by cooling which of the following?

methane
natural gas
carbon dioxide
nitrous oxide

IGCSE O Level Chemistry MCQs App & e-Book – Energy from Chemicals Study Guide

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