Question

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Answer 1

Answer:

1. When an ant bites, it injects formic acid into the skin.

Calamine solution contains zinc carbonate which is basic in nature.

Hence, it is applied on the skin to neutralize the effect of formic acid.

2. Acidity is caused when an excess of acids is produced in the stomach. An antacid, such as milk of magnesia, act as a base, and react with excess acid and neutralize its effect, thus giving relief.

3. Factory wastes contain acids which if untreated and discharged into water bodies will cause harm to fish and other aquatic organisms living in water bodies. Therefore, they should first be treated with basic substances to neutralize them and then discharged into water bodies.

Answer 2

Explanation:

1. Calamine solution is applied on the skin when an ant bite because Ant injects an acidic liquid (Formic acid) into the skin on biting which causes inflammation, to the skin. The effect of the acid can be neutralised by rubbing. Calamine solution which contains zinc carbonate which is very weak base and causes no harm to the skin.

2. an antacid tablet is taken when you suffer from acidity because We take an antacid such as milk of magnesia to neutralises the excessive acid released in stomach.

3. factory waste should be neutralized before disposing it into the water bodies because The wastes of factories contain acids. If acids are disposed off in the water body, the acids will harm the organisms. So factory wastes are neutralised by adding basic substances.

I hope this answer would be helpful to you