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Chemistry

Chemistry
The monomer of polythene is

None of these
vinyl chloride
ethyl alcohol
ethylene

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Chemistry
The depletion of Ozone layer is mainly due to

Aviation fuels
Radioactive rays
Volcanic eruptions
Chlorofluorocarbons

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Chemistry
Chemical name of vinegar is

Acetone
Ethanol
Acetic acid
Formaldehyde

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Chemistry
Interveinal necrotic spots on leaves appear due to

NO2injury
HF injury
O3injury
SO2injury

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Chemistry
Which one of the following organic compounds has fruity smell?

Ether
Aldehyde
Alcohol
Ester

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Chemistry
The new strain of bacteria produced by biotechnology in alcohol industry is

Pseudomonas putida
Bacillus subtilis
Saccharomyces cerevisiae
Escherichia coli

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