HARD
7th CBSE
IMPORTANT
Earn 100

Choose the acidic, basic and neutral Salts from the following:

Sodium chloride, Ammonium chloride, Sodium carbonate, Sodium sulphate, Ammonium sulphate.

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 28
Explain why, if we touch the test tube immediately after carrying out the neutralisation reaction of an acid and a base in it, it is found to be somewhat hot.
HARD
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 29
A student adds dilute sulphuric acid to lime water. Will the reaction mixture become hot or cold? why?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 30
Explain why, an antacid tablet is taken when you suffer from acidity.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 31
Explain why, calamine solution is applied on the skin where an ant bites.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 32
The soil in a field is highly acidic. Name two materials which can be added to this soil to reduce the acidity. Give reason for your choice.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 33
What material should be added to a soil which is too basic? How does this material help in reducing the basic nature of soil?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 34
What is an antacid? How does an antacid work? Name any one antacid.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 5 - Acids, Bases and Salts>Short Answer Type Questions>Q 35

Which acid is produced in our stomach? What happens when there is an excess of acid in the stomach? How can its effect be cured?