Question

State True or False. [3 MARKS]

a) Olfactory indicators respond to acid or base by change in smell.
b) When an aqueous solution of shampoo is mixed with the extract of red cabbage, the solution turns pink.
c) Methyl Orange is a natural Indicator.

Answer 1

Each point: 1 Mark

a) True. Olfactory indicators respond to acid or base by change in smell.
b) False. When an aqueous solution of shampoo is mixed with extract of red cabbage, the solution turns green. This is because the shampoo is basic in nature.
c) False. Methyl orange is an artificial indicator