IGCSE O Level Chemistry Entrance Exam MCQs – Mock Test 157

Exothermic Reactions Quiz with Answers PDF Download – Test 157

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Download the "Exothermic Reactions Learning" App: In ionic crystals, heat energy is taken in to; MCQ with answers: forming sulphates, forming carbonates, forming covalent bonds, and breaking crystal lattices. Learn Energy from Chemicals Questions and Answers, Apple iBook to download free chapter for nonmetals topic revision.

Exothermic Reactions Quiz – Mock Test 157 PDF Download

MCQ 781: In ionic crystals, heat energy is taken in to:

forming carbonates
forming Sulphates
breaking crystal lattices
forming covalent bonds

MCQ 782: Polarization refers to the:

prevention of electricity flowing in the electrolyte solution
rapid dissolving of magnesium in dilute acid
slow dissolving of magnesium in conc. Acid
electricity flowing in the electrolyte solution

MCQ 783: The only covalent molecule conducting electricity is:

helium
selenium
mercury
graphite

MCQ 784: Ionic compounds are:

soluble in water only
good conductors of electricity if in molten state only
bad conductors of electricity
soluble in water and good conductors of electricity if in molten state

MCQ 785: In Universal indicators, a pH of 11 to 14 is indicated through:

turquoise color
violet color
blue color
light violet color

Exothermic Reactions Quiz App & eBook – IGCSE O Level Chemistry Textbook Tests

Chemistry Reactions MCQs

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Molecules and Macromolecules MCQs

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Ions and Ionic Bonds MCQs

Relative Molecular Mass MCQs

Evaporation MCQs

Distillation: Purification Process MCQs

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