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Chemistry

Chemistry
Which is abundant in Gobar gas?

Oxygen
Hydrogen
Methane
Carbon dioxide

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Chemistry
If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by

Mercury
Lead
Arsenic
Iron

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Chemistry
Which one of the following elements exhibits the greatest tendency to lose electrons ?

Zinc
Lithium
Fluorine
Oxygen

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Chemistry
Which of the following type of coal has the lowest proportion of volatile matter ?

Bituminous
Anthracite
Lignite
Peat

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Chemistry
Malathion is a/an

Insecticide
Preservative
Pesticide
Fumigant

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Chemistry
Major portion of the earth’s crust is mainly constituted by

Silicon and Aluminium
Oxygen and Silicon
Oxygen and Iron
Silicon and Iron

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