ICSE/ISC Std 8 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
A homogenenous solid mixture of metal with other metal or with a non- metal is called

(A) ore	(B) mineral
(C) complex	(D) alloys

Question-2
Which is used for making utensils ,many scientific instruments, telescope,microscopes etc.?

(A) Bronze	(B) Brass
(C) Alnico	(D) Solder

Question-3
Non-metals react with halogens to give

(A) Ionic halides	(B) Covalent halide
(C) Metallic halide	(D) Neutral halides

Question-4
The characteristic shine of metal is called

(A) Colour	(B) Metallic lustre
(C) Glow	(D) Glitters

Question-5
Metals have

(A) Different colours	(B) Softness
(C) High tensile strength	(D) Different physical states

Question-6
If the density of the ore is less,______________ method is used.

(A) Magnetic separation method	(B) Leaching process
(C) Froth flotation process	(D) Calcination

Question-7
Which is used for making cutlery,utensile,ornamental pieces and some other instrument and apparatus?

(A) Steel	(B) Stainless steel
(C) Alnico	(D) Nichrome

Question-8
Moderately active metals from their oxide can be obtained by

(A) heating with carbon	(B) heating with aluminium
(C) electrolytic method	(D) strong heating

Question-9
The process of heating an ore strongly in the absence of air or in the presence of very limited quantity of air is called

(A) Leaching	(B) Magnetic separation method
(C) Calcination	(D) Forth-flotation method

Question-10
Which non-metal acts as a reducing agent?

(A) Chlorine	(B) Sulphur
(C) Carbon	(D) Phosphorous

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Std 8

ICSE/ISC

Practice in Related Chapters
Hydrogen
Structure of Atom
Transformation of Substances
Metals and nonmetals
Carbon and its Compounds