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Chemistry

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

Iron
Lead
Mercury
Arsenic

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Chemistry
The most abundant constituent of atmospheric air is :

Hydrogen
Carbon
Oxygen
Nitrogen

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Chemistry
Which of the following is the major constituent of LPG?

Butane
Ethane
Methane
Propane

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Chemistry
Which of the following is used to remove ink and rust stains on cloth?

Oxalic acid
Ether
Kerosene oil
Alcohol

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Chemistry
Which of the following fibres catches fire least ?

Terricot
Cotton
Nylon
Rayon

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Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Higgs-boson
Anions
Cations
Isotopes

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