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.
What type of electromagnetic radiation has the longest wavelength?
View QuestionWhat is the unit of frequency?
View QuestionWhich law states that energy cannot be created or destroyed?
View QuestionWhich element is the most abundant in the Earth’s crust?
View QuestionWhat is the main component of natural gas?
View QuestionWhat type of macromolecule is an enzyme?
View QuestionWhich of the following is a fundamental force in nature?
View QuestionWhich organ is responsible for filtering blood in the human body?
View QuestionWhich gas is commonly used in balloons to make them float?
View QuestionWhat is the chemical symbol for gold?
View Question