IV. Provide the chemical Name of below acid or base. (a) Vinegar

(b) Fruits (orange)

(c) Curd

(d) Lime water

(e) Window cleaner

(f) Soap

V. When ‘X’ is added to ‘Y’ immediately ‘Y” turns to pink. Identify X.

VI. Give examples of a common acid and a common salt. Compare their composition. How do they differ and what do they have in common?

VII. Explain why pickles and jams should not be stored in metal containers.

VIII. Differentiate between weak acid and strong acid.

IX. Explain the reaction involved in the formation of sodium
chloride.

X. Why does a doctor give an antacid to treat indigestion?