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6. What colour does a hydroxide ion turn litmus paper
7. What ion gives off a chocking smell when hydrochloric acid is added?
- Sulphite
- Sulphate
- Carbonate
- Deathonate
8. What ion turns limewater milky when hydrochloric acid is added?
- Sulphate
- Milkoate
- Carbonate
- Sulphite
9. When barium chloride is added to an sulphate, sulphite and carbonate it produces and yellow precipitate
10. Which barium chloride precipitate does not dissolve when hydrochloric acid is added?
- Sulphate
- Sulphite
- Carbonate