Pentlandite is an ore/mineral of _______.
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Which gas is released when water is added to bleaching powder?
Chromite is an ore/mineral of
Which molecule contains a polar covalent bond?
Pyrolusite is an ore/mineral of ___________.
The property of metals by which they can be beaten into thin sheets is called _______________.
Rusting is _____.
The reactions in which oxidation and reduction occur simultaneously are called _______.
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