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Chemistry 83

Chemistry 83

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Quiz Questions And Answers

Mercury is used in barometers due to its

High density
High lost
Lusture
Weight

Which one of the following metals occurs in nature in free state?

Aluminium
Gold
copper
Sodium

The percentage purity of ethanol in absolute alcohol is

4.4%
15%
95.6%
100%

The percentage of carbon dioxide in the atmosphere is

0.03
21
78
0.95

Which one of the following is not present in cement?

Gypsum
Cay
Alumina
Alum

The lightest element known is

He
Li
Ar
H2

The chemical name of limestone is

Calcium carbonate
Calcium oxide
Calcium chloride
Calcium hydroxide

Which one of the following forms of carbon is used in sugar industry

Graphite
Animal charcoal
Lamp black
Wood charcoal

What type of bond is present in Hcl molecule?

lonic bond
Polar covalent bond
Co-ordinate bond
Covalent bond

Which of the following shows electrical conduction?

Sodium
Potassium
Diamond
Graphite
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