EASY
7th CBSE
IMPORTANT
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What are indicators?

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 2
How will you test whether a given solution is acidic, basic or neutral with a litmus paper?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 3
Why is an antacid tablet taken when you suffer from acidity?
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 4
Why are mineral acids known as laboratory acids?
EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 1
How does litmus indicator work?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 2
Give three examples each of mineral and natural acids. Mention the sources of natural acids.
MEDIUM
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 3
Why should we treat factory waste before discharging it into a river?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 4

Annie is playing in her garden with her friend, Ishrat. Suddenly, a bee bites Ishrat. Annie immediately brings soda and rubs it on the stung area.

(a) Why does Annie apply baking soda?

(b) What value can you learn from Annie?

EASY
7th CBSE
IMPORTANT
SCIENCE MADE EASY>Chapter 5 - Acids, Bases and Salts>EXERCISE>Q 1
Define neutralisation reaction.