Question

1. Give any two uses of the following. a. Sulphuric acid: .... b. Organic acids: C. Vinegar:​

Answer 1

Answer:

Define the following terms.

1. Acidic substances

2. Basic substances

3. Organic acids

4. Dilute acid

5. Concentrated acid

6. Indicators

7. Water of crystallization

8. Anhydrous salts

ANSWER:

1. Acidic Substances are the substances which contain an acid. They are the sour-tasting chemicals which are soluble in water and corrosive by nature.

2. Basic substances are the substances which contain a base. Basic substances are the bitter-tasting chemicals which may or may not be soluble in water and are soapy to touch.

3. Organic Acids are the substances with acidic properties that occur naturally in plants and animals.

4. Dilute acids are the acids which contain more amounts of water and less amounts of acid.

5. Concentrated acids are the acids which contain more amounts of acid and less amount of water.

6. Indicators are substances that change colour in the presence of an acid or a base.

7. The water molecules present in the salt crystals which gives the crystal its shape is called water of crystallization.

8. Hydrated salts which lose their water of crystallization on heating and change into a powdery substance are called anhydrous salts.

Answer 2

Answer:

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Explanation:

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