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Chemistry

Chemistry
Quartz is a crystalline form of

Alumina
Limestone
Silica
Glass

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Chemistry
The “King of Metals” is :

Iron
Aluminium
Silver
Gold

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Chemistry
The depletion in Ozone layer is caused by ________ .

Chlorofluorocarbons
Carbon dioxide
Nitrous oxide
Methane

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Chemistry
In chemical terms, what are alums used for purifying water for drinking purposes ?

Hydrated chlorides
Double nitrate
Double sulphates
Nitrates of aluminium

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

NO2
SO3
SO2
N2O

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

5 gram of molecule
1 gram of molecule
10 gram of molecule
0.5 gram of molecule

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MORE MCQ ON Chemistry

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