Descriptive Questions

Descriptive Questions

1)What is an acid?

Ans: – Acid is substance which gave H(+) ions in the solution.

 

2)Give two examples of acids found in food articles.

Ans: – In lemon we found citric acid and in milk we find lactic acid.

 

3)What is a base?

Ans: – The base is substance which gave the hydroxyl ions in the solution after dissolving.

 

4)Give two examples of bases.

Ans: – Sodium hydroxide is working as base and the lime water is the example of base.

 

5)What are indicators?

Ans: – The indicator is present in every solution which indicates about the nature of the solution whether it is basic or acidic medium or not.

 

6) What is the colour of methyl orange indicator in (i) acidic medium and (ii) basic medium.

Ans: – In acidic medium the colour of methyl orange is red and in basic medium the colour of it is yellow.

 

7) Why do solutions of acids and bases conduct electricity?

Ans: – The solution of acids and basic conduct electricity as this indicator bear the ion like hydrogen or hydroxyl which helps to transfer electricity.

 

8)Differentiate between strong and weak acids and give one example of each.

Ans: –

Strong acid	Weak base
H (+) Ions are present.	OH (-) are present in it.
HNO3	NH4OH

 

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