When a mixutre of sand and coke is heated at 3723 K, the product formed is :
A
Carborundum
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B
Corundum
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C
Diamond
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D
Coal
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Solution
The correct option is A Carborundum The reaction is, Si+C→SiC. Silicon carbide is formed which is also known as carborundum. Note: Corrundum is an ore of aluminium.