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Chemistry

Chemistry
Which one of the following is known as the 'brown coal'?

Lignite
Bituminous
Anthracite
Coke

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Chemistry
Silk fibre chemically is :

Fat
Protein
Cellulose
Carbohydrate

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Chemistry
Which method will be employed to test the hardness of water?

None of these
Formation of lather with soap
Distillation
Boiling

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Chemistry
L.P.G. is mostly liquefied

Hydrogen
Methane
Butane
Oxygen

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Chemistry
The anode of a dry cell is made up of

Iron
Zinc
Lead
Cadmium

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Chemistry
Cement is usually a mixture of :

Calcium aluminate and calcium ferrate
Calcium silicate and calcium ferrate
Lime stone and silicon dioxide
Calcium silicate and calcium aluminate

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