6. Which ions can be found by adding a little aluminium powder and then sodium hydroxide solution and then testing the gas with damp red litmus paper?
- Metal Carbonates
- Sulfates
- Nitrates
- Metals
- Metal Hydroxides
7. Which ions can be found by thermally decomposing the substance?
- Metals
- Metal Hydroxides
- Sulfates
- Metal Carbonates
- Nitrates
