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Chemistry

Chemistry
The chemical formula of the laughing gas is

NO2
N2O3
NO
N2O

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Chemistry
Which amidst the following is not a gem stone ?

Opal
Cat's-eye
Topaz
Pearl

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Chemistry
Which of the following is not an addition polymer

PVC
Polythene
Polystyrene
Nylon

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Chemistry
What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ?

There is a violent explosion.
There is no reaction.
The paper ignites
There is a crackling sound

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Chemistry
Charcoal is used in water treatment as a/an

Absorbent
Solvent
Coagulant
Adsorbent

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Chemistry
Oxygen has (+) oxidation number only in

OF2
N2O
H2O (2)
C12O

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MORE MCQ ON Chemistry

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