IGCSE O Level Chemistry MCQs - Chapter 11

Redox Reactions Multiple Choice Questions PDF Download - 5

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Redox Reactions Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: The process of oxidation involves

A) gain in oxygen

B) loss of oxygen

C) gain in hydrogen

D) gain in electrons

MCQ 22: In the plentiful supply of oxygen or air, burning of carbon gives off

A) carbon monoxide

B) carbon dioxide

C) H₃O

D) H₂CO₃

MCQ 23: Non-metals are good at

A) accepting electrons only

B) sharing electrons only

C) donating electrons

D) accepting and sharing electrons

MCQ 24: In a Redox reaction,

A) oxidation occurs only

B) reduction occurs only

C) neutralization occurs

D) oxidation and reduction occurs

MCQ 25: While passing hydrogen overheated CuO(s), black color is oxidized to

A) golden color

B) pink color

C) blue color

D) colorless

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