Page 29 - 10-Chem-10 Acid, Bases and Salts

10. Acid, Bases and Salts eLearn.Punjab

Short Questions

1. Name three common household substances having

a. pH value greater than 7

b. pH value less than 7

c. pH value equal to 7

2. Define a base and explain that all alkalies are bases, but all bases are not alkalies.

3. Define Bronsted-Lowry base and explain with an example that water is a Bronsted-Lowry

base.

4. How can you justify that Bronsted-Lowry concept of acid and base is applicable to non-

aqueous solutions?

5. Which kind of bond is formed between Lewis acid and a base?

6. Why H+ ion acts as a Lewis acid?

7. Name two acids used in the manufacture of fertilizers.

8. Define pH. What is the pH of pure water?

9. How many times a solution of pH 1 will be stronger than that of a solution having pH 2?

10. Define the followings:

i. Normal salt ii. Basic salt

11. Na2SO4 is a neutral salt while NaHSO4 an acid salt. Justify.
12. Give a few characteristic properties of salts.

13. How are the soluble salts recovered from water?

14. How are the insoluble salts prepared?

15. Why is a salt is neutral, explain with an example?

16. Name an acid used in the preservation of food.

17. Name the acids present in:

i. Vinegar ii. Ant sting

iii. Citrus fruit iv. Sour milk

18. How can you justify that Pb(OH)NO3 is a basic salt?
19. You are in a need of an acidic salt. How can you prepare it?

20. Which salt is used to prepare plaster of Paris?

29