Question

Write five differences between properties of acids and bases. [5 MARKS]

Answer 1

Each point: 1 Mark

$\begin{array}{cc}\text{Acids}& \text{Bases}\\ \text{(i) Sour in taste}& \text{(i) Bitter in taste}\\ \text{(ii) The properties are due to the presence of}& \text{(ii) The properties are due to the presence of}\\ \text{hydrogen ion}{H}^{+}\text{in water solution of an acid}& \text{hydroxide ion}O{H}^{-}\text{in water solution of a base}\\ \text{(iii) Turns blue litmus to red}& \text{(iii) Turns red litmus to blue}\\ \text{(iv) Aqueous solution conducts electricity}& \text{(iv) Aqueous solution conducts electricity}\\ \text{(v) Reacts with active metals like Na, K, Ca and}& \text{(v) Does not react with metals except with}\\ \text{Zn to give hydrogen gas}& \text{Zn, Al and Sn}\end{array}$