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Which of the following is not a synthetic abrasive?(a) Carbides of aluminium(b) Boric acid(c) Corundum(d) SiliconThis question was addressed to me in my homework.My question comes from Miscellaneous Materials topic in section Miscellaneous Materials, Plain and Reinforced Cement Concrete of Construction & Building Materials |
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Answer» Correct choice is (c) CORUNDUM |
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