Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Question Explanation: Classifying oxides based on their acidic, basic, or amphoteric nature.

Concept: Nature of Oxides and Oxidation States.

Solution: The nature of metal oxides depends on the oxidation state of the metal. Generally, low oxidation states are basic, intermediate states are amphoteric, and high oxidation states are acidic.

Acidic: ${\mathrm{Mn}}_2{\mathrm{O}}_7(+7),{\mathrm{CrO}}_3(+6)$. Amphoteric: ${\mathrm{V}}_2{\mathrm{O}}_5,{\mathrm{MnO}}_2,{\mathrm{Cr}}_2{\mathrm{O}}_3,{\mathrm{Pb}}_3{\mathrm{O}}_4,{\mathrm{As}}_2{\mathrm{O}}_3,{\mathrm{Al}}_2{\mathrm{O}}_3$. Basic: $\mathrm{CrO}(+2),\mathrm{MnO}(+2)$.

Therefore, Total count $=8$

Final Answer: (8)