ICSE Class 10 Chemistry
Question 5 of 6
Analytical Chemistry — Use of Ammonium & Sodium Hydroxide — Question 3
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Question Question 3
| Action of Alkalis — on certain metals | |
|---|---|
| 13. Zinc | Zn + NaOH ⟶ ............... + ............... |
| 14. Zinc | Zn + KOH ⟶ ............... + ............... |
| 15. Lead | Pb + NaOH ⟶ ............... + ............... |
| 16. Lead | Pb + KOH ⟶ ............... + ............... |
| 17. Aluminium | Al + NaOH + H2O ⟶ ............... + ............... |
| 18. Aluminium | Al + KOH + H2O ⟶ ............... + ............... |
| Action of Alkalis — on certain metals | |
|---|---|
| 13. Zinc | Zn + 2NaOH ⟶ Na2ZnO2 + H2 |
| 14. Zinc | Zn + 2KOH ⟶ K2ZnO2 + H2 |
| 15. Lead | Pb + 2NaOH ⟶ Na2PbO2 + H2 |
| 16. Lead | Pb + 2KOH ⟶ K2PbO2 + H2 |
| 17. Aluminium | 2Al + 2NaOH + 2H2O ⟶ 2NaAlO2 + 3H2 |
| 18. Aluminium | 2Al + 2KOH + 2H2O ⟶ 2KAlO2 + 3H2 |