MEDIUM
10th CBSE
IMPORTANT
Earn 100

Distinguish between roasting and calcination.

Important Questions on Metals and Non-Metals

HARD
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 5

A yellow malleable alloy is made up of two metals A and B. On treatment with dilute sulphuric acid, A dissolves from the surface of the alloy to form a colourless solution. B remains undissolved and is found to have a reddish brown colour. Identify metals A and B. Explain the reactions involved. 

HARD
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 7
Give six characteristic differences between metals and non-metals.
HARD
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 8

Discuss different methods for the refinement and purification of metals after enrichment of ores. 

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 9
What is corrosion of metals? Name one metal which does not corrode and one metal which corrodes on being kept in atmosphere.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 9
How will you show that rusting of iron needs oxygen and moisture at the same time.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 10
What is an 'activity series' of metal? Arrange the metals Zn, Mg, Al, Cu and Fe in a decreasing order of reactivity.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 10

What would you observe when you put-

some zinc pieces into blue copper sulphate solution?

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 10

What would you observe when you put

Some copper pieces into green ferrous sulphate solution?