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Chemistry

Chemistry
Select the one which is not a mixture :

Air
Gasoline
Distilled water
LPG

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Chemistry
The coating of a thin layer of zinc on steel or iron objects is known as

Electroplating
Galvanising
Tinning
Hot dipping

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Chemistry
Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful

Solar ultraviolet radiation
SO2 in the air
CO2 in the air
Solar infrared radiation

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Chemistry
The graphite rods in the nuclear reactor

undergo combustion which triggers the nuclear fission
convert fast moving neutrons into thermal neutrons
produce neutrons
react with U to release energy

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Chemistry
The metal used to recover copper from a solution of copper sulphate is

Na
Ag
Hg
Fe

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Chemistry
Which type of radiations are absorbed by the upper layer of the atmosphere?

Visible
Ultraviolet
Radio-waves
Infrared

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MORE MCQ ON Chemistry

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