O Level Chemistry MCQs - Chapter 11

Redox Reactions Quiz Questions PDF - 3

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Chemistry: Redox Reactions Quiz Questions PDF Download

MCQ: Hydrogen acts as a reducing agent, by

A) taking oxygen only

B) giving electrons only

C) taking hydrogen

D) taking oxygen and giving electrons

MCQ: The process of reduction involves

A) loss of oxygen

B) gain in hydrogen

C) gain in oxygen

D) gain of electrons

MCQ: Oxidizing agents do not include

A) potassium iodide

B) potassium magnate

C) potassium dichromate

D) bromine solutions

MCQ: What is true about an oxidant?

A) it gives oxygen only

B) it accepts electrons only

C) it gives hydrogen

D) it gives oxygen and accepts electrons

MCQ: The Activation energy can be lowered through the use of

A) catalysts

B) inhibitors

C) enzymes

D) insulators

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