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Chemistry

Chemistry
The major component in the LPG is

Propane
Ethane
Methane
Butane

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Chemistry
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?

Sulphur dioxide
Chlorofluorocarbons
Carbon dioxide
Nitrous oxide

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Chemistry
Sea water is saltier than rain water because

Sea beds have salt producing mines
Rivers wash away salts from earth and pour them into the sea
The air around the sea is saltish
Sea animals are salt producing

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Chemistry
The increasing abundance of green house gases in atmosphere has led to the following effect except

Depletion of ozone layer in the stratosphere
Carbon dioxide ferilization effect
Oxygen fertilization effect
Global warming

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Chemistry
The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

Dihydroxy phenyl alanine
Hydroxy phenyl alanine
Phenyl alanine
Amino phenyl alanine

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Chemistry
CNG used in automobiles to check pollution, mainly consists of

CO2
H2
CH4
N2

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