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IGCSE O Level Chemistry Practice Test 72

Chemical Reaction: Factor Affecting MCQ Questions and Answers PDF - 72

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Chemical Reaction: Factor Affecting MCQ with Answers PDF Download: Quiz 72

MCQ 356: Rate of reaction approximately doubles when temperature increases to approximately

A) 50 °C
B) 10 °C
C) 15 °C
D) 20 °C

MCQ 357: Aqueous Sulfuric Acid (H2SO4(aq)) contains

A) Hydrogen ions
B) hydro oxide ions
C) sulfate ions
D) all of above

MCQ 358: Valence electrons refer to which of the following?

A) total number of electrons in an atom
B) total number of protons
C) total number of electrons in the outermost shell
D) total number of neutrons

MCQ 359: In formic an ionic bond Magnesium Oxide (MgO), Magnesium

A) loses 1 electron
B) loses 2 electrons
C) gains 1 electron
D) gains 2 electros

MCQ 360: Hydroxonium ions are represented as

A) OH ions
B) H2O3 ions
C) H3O ions
D) H2O3

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