Class 10 Chemistry DPP

1. Litmus solution is a purple coloured dye extracted from _____ plant.

2. Litmus solution has ______ colour in acidic solution and ______ colour in basic

 solution.

3. Orange juice is _________ in nature.

4. Phenolphthalein has _________ colour is basic solution.

5. Methyl orange has _____ colour in acidic solution.

6. Egg shells contain the compound _____ as main constituent.

7. Milk of magnesia is the name given to the compound _____.

8. Acid present in APPLE __________?

9. Dilute H₂SO₄ is prepared by adding _____ into _____.

10. Zinc reacts with NaOH to form _____ and _____.

11. Aluminium reacts with NaOH to form _____ and _____.

12. Give an activity in which metal carbonate / hydrogen carbonate react with

 acid.

13. Explain the test for gas evolved by acid with metal carbonate.

14. What happened when acid react with metal. Give an activity for your

 support.

15. Explain, the test for gas evolved in above reaction.

16. Write the 4 difference acid and base.

17. Define the reaction of acid and base also write the special name to this

 reaction.