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Chemistry

Chemistry
Which of the following molecules has a bond order of 2.5

NO
HCL
CO
F2

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Chemistry
The depletion of ozone layer is due to

Sulphur dioxide
Chloro fluoro carbon
Carbon dioxide
Ethane

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Chemistry
The most abundant element in the earth’s atmosphere is

Krypton
Argon
Oxygen
Nitrogen

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Chemistry
The gas produced in marshy places due to decomposition of vegetation is

Methane
Sulphur dioxide
Carbon dioxide
Carbon monoxide

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Chemistry
White coal is

Uranium
Diamond
Hydro-electricity
None of these

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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

D
C
A
B

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