Acids, Bases and Salts

Two examples of acidic substances :

• Orange

• Baking Soda

• Turmeric

What is the colour of litmus in distilled water?

• Red

• Purple

• Black

Substances in which tartaric acid is found :

• Tamarind

• Grapes

• Soap

• Unripe Mangoes

Complete the given equation :

Acid + Base ➝ Salt + ______

What is meant by acid rain?

The substance having bitter taste and feels soapy on touching is called a ______.

Explain the terms acids and acidic.

What are indicators?

Give an example of a neutralisation reaction.

How the process of neutralisation is effective in changing some of the quality of water?

• It is not effective.

• If the river water is too acidic or basic, it can affect the aquatic life. So by neutralising the pollutants before discharging into the river can at least change water quality to neutral.

• We should keep the river as it is.