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Chemistry

Chemistry
The gas used in the artificial ripening of fruits is

Acetylene
Butane
Ethane
Methane

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Chemistry
The coloured discharge tubes for advertisement mainly contain

Argon
Xenon
Neon
Helium

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Chemistry
By which organic compound all the oils are known ?

Protein
Ester
Hydrocarbon
Carbohydrate

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Chemistry
Dry powder fire extinguishers contain

Sand and sodium carbonate
Sand
Sand and sodium bicarbonate
Sand and potassium carbonate

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

Magnalium
Duralumin
Alnico
Stainless steel

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Chemistry
Which one of the following mineral does not contain oxygen ?

Bauxite
Cryolite
Calcite
Haematite

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