Question

B. Very Short Answer Type Questions


1. Name any two mineral acids and two organic acids.

ans

2 Name the source from which litmus solution is obtained. What is the use of this solution?

ans

3 Blue litmus solution is dropped in a solution. It remains blue. What is the nature of the solution?

ans

4 What is the name of the acid that ants produce?

ans

5. Which acid is produced in the human digestive system?

ans

.
6 Name a base that is used as an antacid.

ans

7. Name three common indicators.

ans



please give me right right right answer answer please friends please fast

Class 7​

Answer 1

V. S. A

1. Mineral Acid-Sulfuric acid, hydrochloric acid.

Organic acids are found in nature. Ex- citric acid and oxalic acid.

2. Litmus is obtained from lichens it is used to to see the basic aur acidic nature of a substance.

3.Basic

4. Formic acid

5. hydrochloric acid

6. Turmeric

7. Turmeric ,Litmus, China rose

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Answer 2

Answer:

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Explanation:

1 = mineral acids are sulfuric acid, hydrochloric acid and nitric acid

The two organic acids are lactic acid, acetic acid.

2 = Litmus solution is extracted from lichens. It is used as an indicator to distinguish between bases & acids

3 = The solution is either basic or neutral in nature.

4 = Formic acid

5 = Hydrochloric acid

6 = Magnesium hydroxide (milk of magnesia).

7 = Methyl orange, phenolphthalein and litmus solution.