MEDIUM
10th CBSE
IMPORTANT
Earn 100

Distinguish between alloy and amalgam.

Important Questions on Metals and Non - Metals

MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 23
Distinguish between minerals and ores.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 23
Distinguish between roasting and calcination.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 24
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.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 25
Which of the following metals is extracted only by electrolysis?
MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 26
Which oxide of a metal gets reduced only by coke and not by H2 gas or CO gas? 
HARD
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 27
An iron nail is dipped in copper sulphate solution. It is observed that:
HARD
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 28
SO2: 
MEDIUM
10th CBSE
IMPORTANT
SCIENCE CHEMISTRY Part-II>Chapter 3 - Metals and Non - Metals>Summative Assessment>Q 29

Metal A when dipped in solution of salt of metal B, then metal B is displaced. This shows that: