Which of the following statements is correct | vedclass

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(B) During the extraction of metals like $Fe$ (iron) and $Cu$ (copper),a flux is added to remove gangue impurities. The flux reacts with the gangue to

Vedclass · Accepted Answer

Slag is lighter than the metal and its melting point is lower than that of the metal.

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(B) During the extraction of metals like $Fe$ (iron) and $Cu$ (copper),a flux is added to remove gangue impurities. The flux reacts with the gangue to form a fusible material called slag. Slag is essentially a silicate or phosphate compound. Properties of slag: $1$. It is lighter than the molten metal,so it floats on the surface of the molten metal,protecting it from oxidation. $2$. It has a lower melting point than the metal,allowing it to remain in a liquid state for easy removal.

Which of the following statements is correct regarding the slag obtained during the extraction of metals like copper and iron?

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