Question

write about natural indicators available in nature?

Answer 1

Answer:

the indicators that obtained from plants are known as natural and in indicators

example turmeric , china rose ,red cabbage

Answer 2

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Answer:

Natural indicators:

• Indicators that occur in nature, which either change colour, or emit out an odour when we pour a few drops of acid or base

• Hydrangea flowers are blue in acidic soil with a pH of 5.5 or lower.

• If the pH of the soil is greater than 7, that is if it is basic then it changes its colour to pink

•  If the soil is neutral, then it is bluish pink

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