Question

5. Is the meaning of 'weak acid' the same as that of 'dilute acid'?
6. State the differences between acids and bases.
7. Three liquids are given to you. One is hydrochloric acid; another is sodium hydroxide and third is a sugar solution. How will you identify them? You have only turmeric indicator.
8. A farmer was unhappy because of his low crop yield. He discussed the problem with an agricultural scientist and realised that the soil of his field was either too acidic or too basic. What remedy would you suggest the farmer to neutralise the soil?

Answer 1

Answer:

I know only sixth one

Explanation:

Acids

i) Acids are sour in taste.

ii) Acid turns blue litmus to red.

iii) Acid is a substance which contains hydrogen ion H+.

Bases

i) Bases are bitter in taste.

ii) Bases turn red litmus to blue.

iii) Bases are substances which contain hydroxyl ion OH−.