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Chemistry

Chemistry
Which of the following elements is found in all organic compounds

Oxygen
Nitrogen
Calcium
Carbon

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Chemistry
Which metal is the heaviest in periodic table among the following ?

W
Pb
Os
Pt

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Chemistry
Which one among the following is not a mixture?

Glass
Steel
Graphite
Brass

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Chemistry
KMnO4 can be used as

Insecticide
Fertilizer
Disinfectant
Pesticide

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Chemistry
The metal present in vitamin B12 is

Fe
Co
Mo
Mg

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Chemistry
The inert gas used as beacon light is

Kr
Ne
He
Ar

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MORE MCQ ON Chemistry

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