EASY
7th CBSE
IMPORTANT
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Write the colour changes when we use the indicator litmus paper on vinegar.

Important Questions on Acids, Bases and Salts

EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I
Define a neutral substance. Give an example.
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I
What happens when turmeric powder is added to a basic solution?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I
What colour change occurs when a few drops of methyl orange is added to window cleaner.
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I

What colour change occurs when a few drops of methyl orange is added to vinegar.

EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I
Give one word for the following:
The substances that have no effect on indicators.
 
EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I

Give one word for the following:

 Substances used to test the nature of a substance.

EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I
Give one word for the following:
An example of a natural indicator. (Litmus/ Methyl orange)
EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.3>Q I

Give an example of a synthetic indicator.