Question

Today Manveer was reading about natural indicators. His teacher placed some substances in front of him and asked which of these substances is used as a natural indicator? Piece of wood / Iron nail / salt / China rose​

Answer 1

Answer:

china roes is an indicator

Explanation:

Answer 2

Here, china rose is a natural indicator.

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⭐More to know

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China rose is a natural indicator that is light pink in color.

What is an indicator?

Indicators are the substances that help us identify that whether or not the given substance is an acid, base or a salt (neutral substance).

Acids:

Nitric acid

Oxalic acid

Hydrochloric acid

Tartaric acid

Base:

Sodium hydroxide

Potassium hydroxide

Magnesium hydroxide

Salt:

Sodium chloride

Copper sulphate solution

Salts of metals

China rose turns acids to dark pink and turns into green color when tested with bases.