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JEE CHEMISTRY MCQ: 14 TH GROUP ELEMENTS (P-BLOCK)
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Diamond and graphite both are made of carbon atoms. Diamond is extremely hard whereas graphite is soft. This is because :
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Correct option: C
Each carbon atom in diamond is chemically bonded to a greater number of neighbouring carbon atoms
Option C (Redox reaction) is correct because Cobalt (Co) is oxidized (loses electrons) and Copper (Cu) is reduced (gains electrons) in the reaction.
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