MEDIUM
10th CBSE
IMPORTANT
Earn 100
Give a reason for the following:
The reaction of zinc with dilute nitric acid does not produce hydrogen gas.
Important Questions on Metals and Non-Metals
HARD
10th CBSE
IMPORTANT
Give reason:
Food cans are coated with tin rather than zinc.
HARD
10th CBSE
IMPORTANT
Give reason:
Most metals are insoluble in water but some of these dissolve in water. What are these oxides and their solutions in water called?
MEDIUM
10th CBSE
IMPORTANT
Give reason: Some alkali metals can be cut with a knife.
MEDIUM
10th CBSE
IMPORTANT
Write the uses of iron
MEDIUM
10th CBSE
IMPORTANT
Write the uses of copper.
MEDIUM
10th CBSE
IMPORTANT
Write the uses of aluminium.
HARD
10th CBSE
IMPORTANT
How will you show experimentally that metals are good conductors of heat?
HARD
10th CBSE
IMPORTANT
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument, the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
