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Questions
State the differences between acids and bases.
Explain the difference between acid and base.
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Solution
| Acids | Bases | |
| 1. | These are sour to taste. | These are bitter to taste. |
| 2. | Acids are proton donors or electron acceptors. | Bases are proton acceptors or electron donors. |
| 3. | Acids have a pH value of < 7. | Bases have a pH value > 7. |
| 4. | Acids turn blue litmus red. | Bases do not change the colour of blue litmus. |
| 5. | Acids do not change the colour of red litmus. | Bases turn red litmus blue. |
| 6. | With china rose indicator, these give a dark pink colour. | Bases give green colour with china rose indicator. |
| 7. | Acids do not change the colour of the turmeric indicator. | Bases turn the colour of the turmeric indicator to red |
| 8. | Acid is a substance that contains hydrogen ion (H+) | Bases are substances that contain hydroxyl ion (OH-) |
| 9. | i.e., \[\ce{HCl, H2SO4, H3PO4}\] | i.e., \[\ce{NaOH, KOH, Ca(OH)2}\] |
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