IGCSE O Level Chemistry Online Tests
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Save Energy O Level Chemistry MCQs: Questions and Answers PDF Download
Liquefied Petroleum Gas (LPG) is obtained by cooling which of the following?
- methane
- natural gas
- carbon dioxide
- nitrous oxide
An efficient source of electricity production is to
- combine hydrogen and oxygen to form water
- drive generators through steam
- combine nitrogen with hydrogen
- none of above
Methane (CH4) is better fuel than Coal gas because
- it is endothermic
- it is exothermic
- it gives off more heat than coal gas
- it requires very little oxygen to burn
Upon burning, Hydrogen (H2) forms
- water vapors
- hydrogen oxide
- hydrogen ions
- hydrocarbon
Energy can be conserved through
- insulating lofts with fiber glass
- use of lame burn engines
- using catalytic converters
- controlling temperature
IGCSE O Level Chemistry Practice Tests
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