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Question-1
4 P + 50₂ ----------> _________.

Phosphorous Oxygen

(A) P₃O₅	(B) 2P₂
(C) 2P₂O₅	(D) P₂O₅

Question-2
Gold is used in _________________.

(A) Thermometer	(B) Fuel
(C) Jewellery	(D) Machinery

Question-3
Name the most abundant metal in the earth's crust_________ .

(A) Silver	(B) Copper
(C) Aluminium	(D) Oxygen

Question-4
Copper sulphate (CuSO₄) possesses.

(A) Red color	(B) Blue color
(C) Green color	(D) Yellow

Question-5
The use of tungsten in electric bulb is based on the fact that:

(A) Tungsten is sonorous.	(B) Tungsten is a metal.
(C) Tungsten has a high tensile strength.	(D) Tungsten has a high density.

Question-6
On burning, ................ reacts with oxygen to produce metal oxides that are .................. in nature. The information in which row completes the given statement?

(A) Metals, acidic	(B) Non-metals, acidic
(C) Metals, basic	(D) Non-metals, basic

Question-7
Which one of the following metal is always stored under kerosene?

(A) Sodium	(B) Aluminium
(C) Magnesium	(D) Copper

Question-8
"Platinum , silver, gold are normally occurs in nature ___________"

(A) In free state	(B) As sulphare ore
(C) As sulphide ore	(D) As carbonate ore

Question-9
A mixture of copper and zinc is called

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

Question-10
Which two of these elements are metals?

I. Iodine

II. Aluminium

III. Zinc

IV. Carbon

(A) I and II	(B) II and III
(C) III and IV	(D) IV and I

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Std 8

CBSE

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