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CHEMISTRY

Chemistry
Magnalium is an alloy of

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

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Chemistry
Magnetite is

Fe2O3
FeCO3
2Fe2O3. 3H2O
Fe3O4

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

Fe2O3
FeCO3
Fe3O4
FeS2

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

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

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Chemistry
Cinnabar is an ore/mineral of

Lead
Mercury
Manganese
Molybdenum

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