Question

list any two natural and synthetic indicators

Answer 1

Solution :-

Natural indicators are made of natural materials and they are used to check whether a substance is acidic or basic. Some example of natural indicators are turmeric powder, orange juice, red cabbage, grape juice, leaf extracts, flower extracts etc.

Synthetic indicators are made of synthetic process and are man-made and they are used to check whether a substance is acidic or basic or neutral. Some of them are used to check pH of substances. Some examples of synthetic indicators are phenophthanlein indicator and methyl orange indicator.

Answer 2

I. the two synthetic indicators are:-

1.Phenolphthalein

2.Litmus paper

II. the two natural indicators are:-

1.Turmeric

2.Juice of china rose(Hibiscus)