50-mark question paper on Acids, Bases, and Salts for class 10 science

1 mark questions

1. Define an acid.
2. Define a base.
3. Give two examples of acids.
4. Give two examples of bases.
5. What is the pH scale?
6. What is the pH of neutral water?
7. What is the pH of an acidic solution?
8. What is the pH of a basic solution?
9. What is the importance of pH in everyday life?
10. Name two uses of sodium hydroxide.

2 mark questions

11. Write a balanced chemical equation for the reaction of sodium hydroxide and hydrochloric acid.
12. What is the name of the product formed when sodium hydroxide and hydrochloric acid react?
13. What is the pH of the product formed when sodium hydroxide and hydrochloric acid react?
14. Write a balanced chemical equation for the reaction of baking soda and vinegar.
15. What is the name of the product formed when baking soda and vinegar react?
16. What is the pH of the product formed when baking soda and vinegar react?

3 mark questions

17. How is bleaching powder prepared?
18. What are the two main uses of bleaching powder?
19. How is washing soda prepared?
20. What are the two main uses of washing soda?