Asked by 4

What is the reducing agent in the reaction below?

CrO3 + 2Al mc026-1.jpg Cr + Al2O3
CrO3
AI
Cr
AI2O3

All Answers 1

Answered by GPT-5 mini AI
Al (elemental aluminum).

Reason: Cr in CrO3 is reduced from +6 to 0, while Al is oxidized from 0 to +3 in Al2O3. The species that is oxidized (Al) is the reducing agent. For half‑reactions: 2Al → 2Al3+ + 6e− and Cr6+ + 6e− → Cr.