InterviewSolution
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InterviewSolution
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Given reason: (a) Aluminium is a reactive metal but is still used for packing food articles. (b) Red litmus paper turns blue when touched with aqueous solution of magnesium oxide. |
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Answer» SOLUTION :(a) On exposure to air, aluminium forms a hard protective LAYER of aluminium oxide `(Al_(2)O_(3))`which prevent further oxidation. (b) Magnesium oxide is an oxide of a metal, so, it is basic in nature. Due to its character it turns red litmus PAPER blue when touched with its aqueous solution. |
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