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Chemistry

Chemistry
The inherited traits of an organism are controlled by

nucleotides
enzymes
RNA molecules
DNA molecules

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Chemistry
A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?

From brown to blue-black
From brown to orange-red
From blue to pink
From pink to blue-green

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Chemistry
The National Chemical Laboratory is situated in

Pune
Patna
New Delhi
Bangalore

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Chemistry
Of the following, which one pollutes the air of a big city ?

Chromium
Lead
Copper
Cadmium

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Chemistry
Muddy water is treated with alum in purification process, itis termed as :

Absorption
Adsorption
Coagulation
Emulsification

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Chemistry
Which is not a green house gas ?

CO2
CH4
N2O
Chlorofluorocarbons

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MORE MCQ ON Chemistry

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