MEDIUM
10th CBSE
IMPORTANT
Earn 100

Explain the meaning of malleable and ductile.

Important Questions on Metals and Non-Metals

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 13
Does every mineral have a definite and fixed composition? Explain. 
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 14
Differentiate between roasting and calcination.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 17
What is 24 carat gold? How would you convert it into 18 carat gold?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 18
The process of covering iron with _____ is called galvanization. (Zinc/ Copper)
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 18
Out of Al, Zn and Ag, only _____ cannot displace hydrogen from dilute HCl.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 1
Define the terms metals, non-metals and metalloids. Give one example in each case.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 3

Give the chemical formula and name of the metals whose ores are the following:

(a) Bauxite      (b) Limestone     (c) Gypsum

(d) Cryolite      (e) Calcite           (f) Borax

(g) Malachite   (h) Magnetite

HARD
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 3 - Metals and Non-Metals>Revision Exercise>Q 4
Give examples of metals which occur in different types of ores.