How does the acidity of an acidic aqueous solution change as the concentration of $[H_{3}O^{+}]$ decreases?

Write true or false for the following statement:
The process of dissolving an acid or a base in water is a highly exothermic process.

On what basis are acids classified as strong and weak acids?

Which of the following are present in a dilute aqueous solution of hydrochloric acid?

State what happens when zinc granules are heated with sodium hydroxide solution. Write the balanced equation for this reaction. Name the main product formed in this reaction.

Write the chemical equations for the reactions of zinc granules with:
$(a)$ Sulphuric acid
$(b)$ Hydrochloric acid
$(c)$ Aluminium chloride
$(d)$ Sodium hydroxide
$(e)$ Nitric acid