JAMB Chemistry questions: Oxidation and reduction

22 questions with answers and explanations. Tap an option to check yourself.

All topics Acids, bases and salts · 32 Air · 21 Atomic structure and bonding · 33 Chemical combination · 31 Chemical equilibrium · 21 Chemistry and industry · 18 Electrolysis · 22 Energy changes · 22 Environmental pollution · 17 Kinetic theory of matter and gas laws · 27 Metals and their compounds · 24 Non-metals and their compounds · 23 Organic compounds · 43 Oxidation and reduction · 22 Rates of chemical reaction · 22 Separation of mixtures and purification · 24 Solubility · 20 Water · 21

Question 21· Oxidation and reduction· JAMB
Find the oxidation number of manganese in MnO₂.
Explanation and discussion
Question 22· Oxidation and reduction· JAMB
In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, zinc is:
Explanation and discussion

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