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Chemistry

Chemistry
When Hydrogen starts burning in air, it produces ?

Ammonia
Water
Carbonic Acid
Methane

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Chemistry
Diamond is harder than graphite because of :

None of these
Tetrahedral structure of diamond
Difference of crystalline structures
Difference in layers of atoms

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Chemistry
Which among the following is not a characteristic of transition metals?

Tendency to gain electrons
Malleability
Low electronegativity
Low ionization energy

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Chemistry
Chemical name of bleaching powder is :

Calcium bi chloride
Calcium hypochlorite
Calcium chlorate
Calcium chloro hypochlorite

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Chemistry
The process of removing calcium and magnesium from hard water is known as

Water softening
Filtration
Flocculation
Sedimentation

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Chemistry
A powerful eye irritant present in smog is

Carbon dioxide
Peroxyacetyl nitrate
Nitric oxide
Sulphur dioxide

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MORE MCQ ON Chemistry

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