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Quick Revision: Acids, Base and Salts Video Lecture | Science Class 7

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FAQs on Quick Revision: Acids, Base and Salts Video Lecture - Science Class 7

1. What are acids, bases, and salts?
Ans. Acids are substances that donate protons, bases are substances that accept protons, and salts are compounds formed from the reaction between an acid and a base.
2. How do acids, bases, and salts differ in terms of their properties?
Ans. Acids taste sour, turn blue litmus paper red, and have a pH less than 7. Bases taste bitter, turn red litmus paper blue, and have a pH greater than 7. Salts are usually crystalline solids.
3. Can you provide examples of common acids, bases, and salts?
Ans. Common acids include hydrochloric acid, sulfuric acid, and citric acid. Common bases include sodium hydroxide, ammonia, and magnesium hydroxide. Common salts include sodium chloride, calcium carbonate, and potassium nitrate.
4. How are acids and bases neutralized to form salts?
Ans. Acids and bases react with each other in a chemical reaction called neutralization. The hydrogen ions from the acid combine with the hydroxide ions from the base to form water, while the remaining ions form a salt.
5. What are the uses of acids, bases, and salts in everyday life?
Ans. Acids are used in cleaning products, batteries, and food preservation. Bases are used in household cleaning products, medicine, and agriculture. Salts are used in food seasoning, water softening, and chemical manufacturing.
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