MEDIUM
7th CBSE
IMPORTANT
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Red litmus paper can he used to tell an acidic material from a neutral material.

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Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 5
China rose solution turns blue when acid is added to it.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 6
The salt that is formed as the result of a neutralisation reaction between an acid and a base is always neutral.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 7
Antacids are made of acidic substances.
HARD
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 1
Name one example each of acidic, basic and neutral substances.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 2
What is an indicator?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 3
Name three substances that we use as indicators.
HARD
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 4
A few drops of purple cabbage juice are added to the colourless solution of a salt. The resulting solution becomes light purple. What does it indicate about the nature of the salt?
HARD
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 5
Does a neutralisation reaction always result in the formation of a neutral salt?