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Chemistry

Chemistry
Number of neutrons in an atom of hydrogen is

One
Three
Two
Zero

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Chemistry
Which one of the following is most electronegative

Lead
Carbon
Silicon
Tin

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Chemistry
Which one is heaviest naturally-occurring element of the periodic element

Iron
Rhodium
Thorium
Uranium

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Chemistry
Which of the following is ozone depleting pesticide ?

Ethylene ozonide
Benzene
Methyl bromide
D.T.

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Chemistry
An example of heterocyclic compound is

Benzene
Anthracene
Furan
Naphthalene

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Chemistry
Ozone depletion in the atmosphere is mainly caused by

Chlorofluorocarbon
Hydrogen sulphide
Sulphur dioxide
Nitrogen dioxide

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MORE MCQ ON Chemistry

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