IGCSE O Level Chemistry Entrance Exam MCQs – Mock Test 61

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MCQ 301: 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

MCQ 302: Rate of decomposition of Hydrogen Peroxide (H₂O₂) can be slowed down through:

glycerin
manganese oxide
vanadium oxide
platinum

MCQ 303: In electrolysis of dilute Hydrochloric Acid (HCl_(aq)), at anode,:

oxygen gas is given off
hydrogen gas is given off
chlorine gas is given off
hydrogen chloride gas is given off

MCQ 304: Liquids may become vapors:

upon boiling only
without boiling
at a temperature below the boiling point of a liquid
at a temperature above the boiling point of a liquid

MCQ 305: Least reactive metal in given series is:

tin
copper
lead
silver

Save Energy: O Level Chemistry Quiz App & eBook – IGCSE O Level Chemistry Textbook Tests

Chemical Symbols MCQs

Ions and Ionic Bonds MCQs

Relative Molecular Mass MCQs

Evaporation MCQs

Distillation: Purification Process MCQs

Pure Substances and Mixtures MCQs

Acids: Properties and Reactions MCQs

Chemical formulas MCQs

Atoms and Elements MCQs

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