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

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

E M B I B E

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Recall Questions

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Why do you think some substances taste sour or bitter?

Important Questions on Acids, Bases, and Salts

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Science Horizons>Chapter 5 - Acids, Bases, and Salts>Let's Answer>Q B

Hydrochloric acid is a mineral acid.

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Science Horizons>Chapter 5 - Acids, Bases, and Salts>Let's Answer>Q B

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