EASY
10th CBSE
IMPORTANT
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Sodium amalgam is a mixture of sodium and . (copper/ mercury)

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Important Questions on Metals and Non-Metals

EASY
10th CBSE
IMPORTANT
The process of covering iron with _____ is called galvanization. (Zinc/ Copper)
EASY
10th CBSE
IMPORTANT
Out of Al, Zn and Ag, only _____ cannot displace hydrogen from dilute HCl.
MEDIUM
10th CBSE
IMPORTANT
Define the terms metals, non-metals and metalloids. Give one example in each case.
MEDIUM
10th CBSE
IMPORTANT

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
Give examples of metals which occur in different types of ores.
HARD
10th CBSE
IMPORTANT
What do you understand by calcination and roasting? What are the differences between them?
HARD
10th CBSE
IMPORTANT

Give an example to illustrate the following terms used in metallurgy.

i) Slag 

ii) gangue

iii) roasting

iv) flux

MEDIUM
10th CBSE
IMPORTANT
How are metalloids different from metals? Name a metalloid.