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Chemistry

Chemistry
Which is the purest form of iron?

Pig iron
Wrought iron
Steel
Cast iron

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Chemistry
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

an addition reaction
an elimination reaction
an oxidation reaction
a condensation reaction

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Chemistry
A powerful eye irritant present in smog is

Sulphur dioxide
Nitric oxide
Peroxyacetyl nitrate
Carbon dioxide

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Metallic polysulphides
Polystyrene
Teflon
Polyurethane

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Chemistry
The main source of Naphthalene is

Diesel
Camphor
Coal-tar
Charcoal

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Chemistry
Non-stick kitchenwares are coated with

Teflon
Graphite
PVC
Silicon

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MORE MCQ ON Chemistry

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