MCQ
What is formed when zinc reacts with sodium hydroxide?
- AZinc hydroxide and sodium.
- BSodium zincate and hydrogen gas.
- CSodium zinc-oxide and hydrogen gas.
- DSodium zincate and water.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The percentage of water absorbed by raisins is:
3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)