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Chemistry

Chemistry
The metal present in vitamin B12 is

Mo
Co
Fe
Mg

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Chemistry
Wood spirit is

Methyl alcohol
Butyl alcohol
Ethyl alcohol
Propyl alcohol

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Chemistry
KMnO4 can be used as

Fertilizer
Insecticide
Disinfectant
Pesticide

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Chemistry
The metal ion present in Vitamin B12 is

Cobalt
Iron
Nickel
Zinc

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Chemistry
Stalactites and Stalagmites form due to the precipitation of :

MgCl2
CaCO3
CaCl2
MgCO3

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Chemistry
What is the atomic number of mercury

80
63
32
41

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MORE MCQ ON Chemistry

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