Q37 of 270 Page 80

Define an acid and a base. Give two examples of each.

Those substances which are sour in taste and produces H + ions in aqueous solutions are called acids.

Examples- Hydrochloric acid and Sulphuric acid.


Those substances which are bitter in taste and produce hydroxide ions in aqueous solutions are called bases.


Examples- sodium hydroxide and potassium hydroxide.



More from this chapter

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36 Do basic solutions also have H+ (aq) ions? If yes, then why are they basic? 36 When a solution becomes more acidic, does the pH get higher or lower? 37 Give the names and formulae of two strong bases and two weak bases. 37 What type of ions are formed:

(i) when an acid is dissolved in water?


(ii) when a base (or alkali) is dissolved in water?