HARD
8th CBSE
IMPORTANT
Earn 100

How can we test for the presence of hydrogen gas?

Important Questions on Metals and Non-Metals

HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 5
A copper vessel left in the open develops a dull green coating on its surface. Why does it happen?
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 6
How do metals react with acids?
MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 7
Why are metals used for making bells and not non-metals?
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 8
Do all metals react with water vigorously? Explain.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 9
Why phosphorus is stored in water?
MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 10
What is a displacement reaction? Give one example.
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 1
How will you distinguish metals from non-metals based on their chemical characteristics?
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 2
With the help of suitable examples, explain the chemical properties of non-metals.