Based on the descriptions provided, here's how they categorize as acids or bases:
Column A
- Tastes sour: Acid
- Tastes bitter: Base
- H2SO4: Acid (sulfuric acid)
- LiOH: Base (lithium hydroxide)
- pH above 7: Base
- pH below 7: Acid
So, to summarize:
- 1: Acid
- 2: Base
- 3: Acid
- 4: Base
- 5: Base
- 6: Acid