Subject: General Science
Book: NCERT Science Class 10
Acids, bases, and salts are important chemical substances.
- **Properties**:
- Acids: Sour taste, turn blue litmus red.
- Bases: Bitter taste, turn red litmus blue.
- Salts: Formed by reaction of acids and bases.
- **pH Scale**:
- Measures acidity or alkalinity of a substance (0-14 scale).
- **Uses**:
- Acids: Vinegar, citric acid.
- Bases: Soap, baking soda.
- Salts: Common salt (NaCl).
**Possible Exam Questions:**
1. What are the physical and chemical properties of acids and bases?
2. How is pH measured and why is it important?
3. Describe the role of acids in daily life.
4. What happens when acids and bases react?
5. Explain the importance of neutralization reactions.
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