Question

Q23. Extraction of chromium from Cr2O3 requires
as the reducing agent.
(A) Carbon
(B) Carbon dioxide
(C) Charcoal
(D) Aluminium​

Answer 1

Answer:

Charcoal

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Answer 2

Extraction of chromium from Cr2O3 requires Aluminum as the reducing agent.

• The method is known as Goldschmidt alumina-thermic process.
• Chromium is almost like aluminum but is less electropositive than aluminum therefore aluminum is used to reduce Cr2O3 to get chromium.
• The reaction proceeds at high temperature.
• Due to strong affinity for aluminum, Cr2O3 reduces to its metallic form.