Question

2. Turmeric and litmus are.....
acid base indicators.
3. Phenolphthalein gives.....
colour with lime water​

Answer 1

Answer:

Turmeric and litmus are natural

acid base indicators.

Phenolphthalein gives colourless

colour with lime water​.

Explanation:

(Turmeric and litmus are natural

acid base indicators.) As They are natural as they are made up of nature's ingredients.

(Phenolphthalein gives colourless

colour with lime water​.)As lime water is acidic and Phenolphthalein gives colorless color in acids and pink with bases.

Answer 2

Answer :

1) Turmeric and litmus are Natural acid base indicator.

2) Phenolphthalein gives Colourless colour with lime water.

Some information :

• Natural indicator : Those indicator which is obtained from natural sources are called natural indicators.
• For example : Litmus, Methyl orange and Phenolphthalein.
• Phenolphthalein indicator is colourless in acid solution.
• Phenolphthalein indicator is pink colour in basic solution.
• Litmus is a natural indicator. Litmus solution is a purple dye which is extracted from a type of plant called 'lichen'.
• Methyl orange indicator gives red colour in acid solution.
• Methyl orange indicator gives yellow colour in basic solution.
• Turmeric is also a natural indicator. Turmeric (haldi) contains a yellow dye. It turns red in basic solution.