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CHEMISTRY

Chemistry
Magnalium is an alloy of

Aluminium and Zinc
Manganese and Magnesium
Magnesium and Tin
Aluminium and Magnesium

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Chemistry
Magnetite is

Fe3O4
FeCO3
2Fe2O3. 3H2O
Fe2O3

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Chemistry
In which of the following states maximum iron ore is found ?

FeCO3
Fe2O3
FeS2
Fe3O4

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

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Chemistry
Cinnabar is an ore/mineral of

Mercury
Molybdenum
Manganese
Lead

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