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Chemistry

Chemistry
The name of unreactive gas is

Nitrogen
Carbon dioxide
Hydrogen
Oxygen

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Chemistry
Bleaching powder is prepared by passing :

Chlorine over slaked lime
Oxygen over slaked lime
Chlorine over quick lirne
Carbon dioxide over slaked lime

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Chemistry
Periodic table contains how many periods

6
8
10
7

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Chemistry
The function of skimming tank in sewage treatment is to remove

Suspended solids
Inorganic substances
Gritty substances
Oil and fatty substances

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Chemistry
The cathode of a lead storage battery is made up of

Lead
Manganese dioxide
Lead oxide
Zinc

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Chemistry
What is the mass percentage of carbon in carbon dioxide (CO2)

0.273
0.323
0.201
0.158

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MORE MCQ ON Chemistry

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