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4. The use of diamond in abrasives is due to its:

(a) High melting point
(b) Durability
(c) Metallic luster
(d) Hardness


Sagot :

Final answer:

Diamond is used in abrasives for its hardness due to strong covalent bonds between carbon atoms.


Explanation:

Diamond is used in abrasives due to its hardness. The strong covalent bonds between carbon atoms in diamond make it difficult to deform or melt, requiring a large energy input. This hardness allows diamond to be utilized in cutting, drilling, grinding, and polishing applications.


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