The main mineral constituents of the continental mass are ________ and alumina.
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Which of the following elements has the lowest melting point?
Bauxite is used as raw material by which industry
Which of the following elements has the electronic configuration 2, 8, 3?
Which among the following is an example of solid sol?
The most serious air pollutant causing health hazard is
Which of the following is also used as a Bio fertilizer?
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