HARD
8th CBSE
IMPORTANT
Earn 100

Give one- or two-word answers for the following:

What do we get when a metal reacts with an acid?

Important Questions on Metals and Non-Metals

EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 1
Why is sodium stored under kerosene oil ?
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 2
Give two examples of metals reacting with water using chemical equations.
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 3
Why are all electrical wires made from metals such as copper and aluminium?
HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 5 - Metals and Non-Metals>EXERCISE>Q 4
How can we test for the presence of hydrogen gas?
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.