MEDIUM
10th ICSE
IMPORTANT
Earn 100

Pure iron is soft and stretches very easily when hot. How does this property of iron change when nickel and chromium are mixed with it?

Important Questions on Metals and Non-metals

EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 1
Define a metal.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 2
What are amphoteric oxides?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 3
Metals displace hydrogen from dilute acids, where as non-metals do not. Give reason.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 4
Why does copper not displace hydrogen from dilute acids?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 5
Why does the blue colour copper sulphate solution fade away, when a rod of zinc metal is dipped into it?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 6
What would happen, if a silver spoon is placed in a concentrated aqueous solution of copper sulphate?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 7
A copper coin is immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 8
Name any three neutral oxides.