HARD
7th CBSE
IMPORTANT
Earn 100

Match the following:

Column A Column B
1. Acid a. Acidic
2. Bee sting b. Base
3. Alkali c. NaOH solution
4. Salt d. Blue litmus red
5. Baking soda e. Acid+ Base


 

Important Questions on Acids, Bases and Salts

EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 5 - Acids, Bases and Salts>Worksheet FA>Q C
Milk changes into curd due to acid formation. Find out which bacteria does it and which acid forms.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 5 - Acids, Bases and Salts>Worksheet FA>Q C
You are given solutions of an acid and a base. How will the colour of red litmus change if you start adding base into the acid solution. What will be its colour when you have added excess base?
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 5 - Acids, Bases and Salts>Worksheet FA>Q C
Acids derived from plants and animal products are weak. What do you think is the reason for this?
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 5 - Acids, Bases and Salts>Worksheet FA>Q C
Pickles are never stored in metal containers. What is the reason for this?