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Chemistry

Chemistry
Coating of solid waste with impervious material is known as

Landfill
Capping
Chemical fixation
Encapsulation

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Chemistry
The metal present in vitamin B12 is

Fe
Mo
Co
Mg

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Chemistry
The octane number of zero is assigned to

3-methyl octane
n-heptane
2-methyl octane
iso-octane

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Chemistry
The luster of a metal is due to

presence of free electrons
its high density
its high polishing
its chemical inertness

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Chemistry
Normal rainwater has a pH level of

8.3
3.2
5.6
6.3

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Chemistry
Removal of carbon particles from air involves the principle of

Filteration
Electrophoresis
Sedimentation
Precipitation

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MORE MCQ ON Chemistry

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