Name: Natural Indicators
Uploaded: 2019-07-19
Duration: 4 min 51 s
Description: This video tells you about acids, bases and natural indicators. Natural Indicators, such as turmeric powder and China rose petal solution, are explained in t...

Question

Match the following.

Column A	Column B
1. Calcium hydroxide	a. laxative
2. Ammonium hydroxide	b. household cleaner
3. Sodium hydroxide	c. whitewashing
4. Magnesium hydroxide	d. soaps and detergents

Accepted Answer

1. Calcium hydroxide is used as a whitewashing agent because it reacts with atmospheric carbon dioxide and forms a thin layer of calcium carbonate.

2. Ammonia evaporates quickly so, ammonium hydroxide is used as a cleaner for households.

3. Sodium hydroxide changes insoluble dirt, grease and oil into soluble compounds. Hence, sodium hydroxide is used as soaps and detergents.

4. Magnesium hydroxide is a mild base that neutralizes excess acid produced in the stomach. Hence, magnesium hydroxide is used as a laxative.

Column A Column B

1. Calcium hydroxide c. whitewashing

2. Ammonium hydroxide b. household cleaner

3. Sodium hydroxide d. soaps and detergents

4. Magnesium hydroxide a. laxative

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