3 samples A B C are beaten with a hammer. A and C are flattened on hammering but B is formimg a powder. A is yellow in colour, B is black in colour, and C is silvery white in colour. A B C are good conductors of electricity ...... identify A B C and justify your answer
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A is copper.
B is graphite.
C is Aluminium.
B is graphite.
C is Aluminium.
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