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Chemistry

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

Lignite
Peat
Anthracite
Bituminous

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Chemistry
Supersonic jet causes pollution by thinning of

O 2 layer
CO2 layer
SO2 layer
O3 layer

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Chemistry
Aluminium chloride is

Arrhenius Acid
Lewis Base
Lewis Acid
Bronsted Lowry Acid

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Chemistry
In upper layer of atmosphere ozone is formed by

The action of ultraviolet rays on oxygen
The combination of oxygen molecules
Subjecting oxygen to high pressure
The action of nitrogen on oxygen in atmosphere

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given belowList-I (Vitamin)List-II(Chemical compound)F.Vitamin A1.ThiaminG.Vitamin B12.RetinolH.Vitamin C3.Ascorbic acidJ.Vitamin E4.TocopherolCodes :FGHJA.4132B.2314C.4312D.2134

A
B
D
C

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Chemistry
Sea weeds are important source of

Chlorine
Bromine
Iron
Iodine

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MORE MCQ ON Chemistry

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