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Chemistry

Chemistry
The octane number of zero is assigned to

2-methyl octane
3-methyl octane
iso-octane
n-heptane

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Chemistry
Taj Mahal is greatly affected due to :

Sound pollution
Deforestation
Tourists
Acid rain

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Chemistry
Main pollutants released from iron and steel industry are

CO2, NO2 and SO3
CO2, H2S and NO2
CO, CO2 and SO2
NO, SO3 and H2S

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Chemistry
The graphite rods in the nuclear reactor

react with U to release energy
convert fast moving neutrons into thermal neutrons
produce neutrons
undergo combustion which triggers the nuclear fission

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Chemistry
Charcoal is used in water treatment as a/an

Coagulant
Solvent
Adsorbent
Absorbent

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Chemistry
Which among the following is a carbohydrate ?

Cane-sugar
Nylon
Hydrogen peroxide
Turpentine

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