Answer to Question #342539 in General Chemistry for Farjana

Question

The colour of red cabbage indicator is as below

original colour: purple

colour in acid :pink

colour in alkali :green

If a red cabbage has pink leaves.what can you infer about the soil it is growing in ?

Answer 1

If a red cabbage has pink leaves it means that the soil where it grows is acidic. Namely, the pH of it is less than 7 and a high concentration of the protons are the main characteristics of the soil. Because the cabbage roots absorb the macro and micro soluble particles from the soil, acid comes too and leads to the colour's change.