EASY
10th ICSE
IMPORTANT
Earn 100

Differentiate between the following:

Calcination and Roasting.

Important Questions on Metals and Non-metals

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 24
Are all pure liquids conductors of electricity?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 24
Name a liquid that is a good conductor of electricity but does not undergo electrolysis, on passing electric current.
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 24
Name one practical application based on the phenomenon of electrolysis.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 25
Why is ZnO called an amphoteric oxide? Name another amphoteric oxide.
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 25
What are alkalis? Give one example of an alkali.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 26
How is thermite process useful to join railway tracks? Give the reason which is involved in joining railway tracks.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 27
A metal X is so soft that it can be easily cut with a knife. Is oxide, soluble in water, forms, compound which turns red litmus blue. Identify X. Give your answer with a chemical equation.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 28
What is galvanisation? How does this prevent rusting?