Question

• Natural indicators and change in Colour in acidic and basic medium.

• With pictures also ​

Answer 1

Indicator Original colour Acid Base

Red litmus Red No change Blue

Blue litmus Blue Red No change

Turmeric Yellow No change Reddish brown

Red cabbage juice Purple Reddish Greenish yellow

Phenolphthalein Colourless Colourless Pink

Methyl orange Orange Red Yellow

Onion n/a No change Smell vanishes

Vanilla n/a No change Smell vanishes