MEDIUM
10th CBSE
IMPORTANT
Earn 100

How does a universal indicator work?

Important Questions on Acids, Bases And Salts

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 20
Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 21
Which chemical is injected into the skin of a person:

(a) During an ant's sting?
(b) During the nettle leaf hair sting?
How can the effect of these stings be neutralised?

HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 22
Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 22

Explain how pH change in the lake water can endanger the lives of aquatic animals (like fish).

What can be done to lessen the danger to the lives of aquatic animals in the lake?

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 23
What happens during a bee sting? What is its remedy?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 23
What happens during a wasp sting? What is its remedy?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 24
Why is it wrong to treat a bee sting with vinegar?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 24
Why is it wrong to treat a wasp sting with baking soda solution?