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Chemistry

Chemistry
Which of the following is an iron ore ?

Nitrite
Lignite
Magnetite
Bauxite

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Chemistry
Inert gases are

Not stable
Miscible with water
Chemically very active
Chemically unreactive

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Chemistry
Food cans are coated with tin and not with zinc because

Zinc is costlier than tin
Zinc is more reactive than tin
Zinc has a higher melting point than tin
Zinc is less reactive than tin

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Chemistry
Green house effect is accelerated by

Increased transportation activity
Deforestation
Rapid industrialization
All of these

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Chemistry
Zone refining is used for the purification of

Ag
Au
Ge
Cu

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Chemistry
Which one is the simplest form of alkane

Decane
Propane
Methane
Butane

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MORE MCQ ON Chemistry

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