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Chemistry

Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Propane
Methane
Ethane
Butane

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Chemistry
Carbon footprint can be reduced by

Using energy efficient appliances
Recycling waste materials
All of these
Commuting by public transport

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Chemistry
Aspirin is

Methyl Salicilate
Acetyl Salicilic acid
Methoxy benzoic acid
Phenyl Salicilate

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Chemistry
Major gaseous pollutant of the thermal power station is

NO2
SO2
NH3
H2 S

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Chemistry
The presence of Cobalt in Vitamin B12 was established for the first time by

Spectroscopy
Hydrolysis test
Sodium Nitroprusside test
Borax-Bead test

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Chemistry
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

1 : 1 : 1
2 : 16 : 1
1 : 16 : 2
2 : 16 : 2

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