EASY
10th ICSE
IMPORTANT
Earn 100

Distinguish between:

Acid and alkali (other than indicators)

Important Questions on Acids, Bases and Salts

EASY
10th ICSE
IMPORTANT
What should be added to increase the pH value?
EASY
10th ICSE
IMPORTANT
What should be added to decrease the pH of the neutral solution?
MEDIUM
10th ICSE
IMPORTANT
How does tooth enamel get damaged? What should be done to prevent it?
MEDIUM
10th ICSE
IMPORTANT
When you use a universal indicator, you see that solutions of different acids produce different colours. Indeed, solutions of the same acid with different concentrations will give different colours. Why?
EASY
10th ICSE
IMPORTANT
A solution has a pH of 7. Explain how would you increase its pH?
EASY
10th ICSE
IMPORTANT
A solution has a pH of 7. Explain how you would decrease its pH. 
EASY
10th ICSE
IMPORTANT
If a solution changes the colour of litmus from red to blue, what can you say about its pH?
EASY
10th ICSE
IMPORTANT
What can you say about the pH of a solution, that liberates carbon dioxide from sodium carbonate?