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Chemistry

Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Gun powder
Glass
Paint
Cement

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

Lead
Manganese dioxide
Zinc
Lead oxide

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Chemistry
Which among the following is used as a catalyst in the production of high octane fuels?

H2SO4
HCl
HF
HNO3

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Chemistry
Which of the following alloy is used in making magnet ?

Stainless steel
Magnalium
Duralumin
Alnico

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Chemistry
Which one of the following does not contain Silver ?

Ruby Silver
Lunar Caustic
German Silver
Horn Silver

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Chemistry
The chemical name of 'Plaster of Paris' commonly used for setting broken bones is

Calcium carbonate
Calcium chloride
Calcium nitrate
Calcium sulphate

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