Question

The reaction of Cr₂O₃ with silicon metal at high temperatures will produce which of the following?

1) Chromium oxide
2) Silicon oxide
3) Chromium metal
4) Silicon metal

Answer 1

The reaction of chromium(III) oxide with silicon metal at high temperatures results in the production of chromium metal, with silicon acting as a reducing agent.

Step-by-step explanation:

The reaction of chromium(III) oxide, or chromic oxide (Cr2O3), with silicon metal at high temperatures doesn't produce any of the oxides listed, such as chromium oxide or silicon dioxide. Instead, the silicon metal acts as a reducing agent and reduces the chromium(III) oxide to chromium metal. Therefore, the product of the reaction between chromium(III) oxide and silicon metal at high temperatures is chromium metal (option 3).