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Chemistry

Chemistry
Which among the following is used to dilute oxygen in the gas cylinders used by divers ?

Argon
Krypton
Neon
Helium

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Chemistry
Yellow Cake' an item of smuggling across border is

A crude from of heroin
Uranium oxide
Unreformed gold
A crude from of cocaine

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Chemistry
Highest percentage of carbon is found in which form of coal?

Peat
Anthracite
Bituminous
Lignite

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Chemistry
Sea weeds are important source of

Iodine
Chlorine
Bromine
Iron

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Chemistry
Air shows the property of

N2
None of these
Both A and B
O2

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Chemistry
Which of the following is used to iodise common salt ?

Iodine
Potassium iodate
Potassium iodide
Sodium iodide

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