MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Earn 100

The sting of a wasp is basic. How can we treat the sting of a wasp?

Important Questions on Acids and Bases

MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 2
Why are acids not stored in a metal container?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 3
Acidic, basic and neutral solutions are given in three test tubes and are given a strip of red litmus. How will you identify the three solutions?
EASY
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 4
When drops of lemon juice are put on blue litmus, it turns red. What will happen if you put some drops of soap solution on the same position on litmus paper?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 5
What happens when Nitric acid is added to eggshell?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 6
Turmeric stains on white clothes, when washed with soap, turns red. Why?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 7
Ammonia is present in window cleaners. It turns red litmus blue. What is its nature?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 8
What is the nature of urea? Is it acidic, basic or neutral? How can we verify it?
MEDIUM
7th Andhra Pradesh Board
IMPORTANT
Science Class VII>Chapter 2 - Acids and Bases>Improve your learning:>Q 9
Red litmus is dipped in a solution. It remains red. What is the nature of the solution? Explain your answer.