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Chemistry

Chemistry
Dry ice is the solid form of :

Carbon di–oxide
Water
Air
Nitrogen

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

Cacl2
Cal2
CaF2
CaBr2

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Chemistry
The gas used for filling weather balloons is

Hydrogen
Air
Helium
Nitrogen

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Chemistry
The 'solid waste' is also known as

Toxic waste
Sludge
Scrubber
Sedge

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Chemistry
If the sewage is fully oxidized, the nitrogen is in the form of

Nitrates
Nitrites
Nitramines
Ammonia

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

Neon
Argon
Krypton
Helium

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MORE MCQ ON Chemistry

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