Correct option is D
The correct answer is: D) Sodium zincate
Explanation:
The reaction occurs because zinc is an amphoteric metal, meaning it reacts with both acids and bases.
Reaction:
Zn+2NaOH+H2O→Na2ZnO2+H2↑
Information Booster:
- Amphoteric Metals: Zinc (Zn), Aluminium (Al), and Lead (Pb) react with both acids and bases.
- Sodium Zincate (Na₂ZnO₂): A soluble complex formed in the reaction of zinc with NaOH.
- Other Amphoteric Oxides: Al₂O₃ (Aluminium Oxide), ZnO (Zinc Oxide), PbO (Lead Oxide).
- Hydrogen gas (H₂) test: A burning splint makes a "pop" sound when exposed to H₂ gas.