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Chemistry

Chemistry
The number of hydrogen bonds between guanine and cytosine in DNA is

1
4
2
3

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Chemistry
Who developed the model of atomic structure ?

Alfred Nobel
Faraday
Volta
Bohr and Rutherford

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Chemistry
Chemical name of Gammaxane is

Toluene
Aniline
Chloro benzene
Benzene hexachloride

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Chemistry
Which one is the naturally occuring heaviest element

Mercury
Thorium
Uranium
Protactinium

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Chemistry
Which one of the following is found in Vinegar ?

Butyric acid
Propionic acid
Acetic acid
Formic acid

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Chemistry
Choose the incorrect statement pertaining to organic compounds

They are not easily combustible
They have low melting and boiling points
They do not dissolve in water
They contain mainly carbon and hydrogen

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