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Chemistry

Chemistry
The hottest part of the gas flame is known as

dark zone
blue zone
luminous zone
non-luminous zone

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Chemistry
The inherited traits of an organism are controlled by

nucleotides
DNA molecules
enzymes
RNA molecules

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Chemistry
The depletion of Ozone layer is mainly due to

Aviation fuels
Volcanic eruptions
Chlorofluorocarbons
Radioactive rays

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Chemistry
The element with highest ionization potential is

Boron
Helium
Oxygen
Carbon

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Chemistry
The buffer action of blood is due to the presence of

HCI and NaCI
CI– and [CO3]2–
[HCO3]– and H2CO3
CI– and [HCO3]–

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Chemistry
Chemical name of vinegar is

Formaldehyde
Ethanol
Acetic acid
Acetone

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