Chemistry · Electrochemistry
निम्नलिखित मानक अपचयन प्रक्रियाओं पर विचार कीजिए: Al3+ + 3e- → Al(s), E° = -1.66 V Fe3+ + e- → Fe2+, E° = +0.77 V Co3+ + e- → Co2+, E° = +1.81 V Cr3+ + 3e- → Cr(s), E° = -0.74 V संबंधित प्रजातियों की अपचायक (reducing agent) के रूप में कार्य करने की प्रवृत्ति का घटता हुआ क्रम है:
- 1Cr > Fe2+ > Al > Co2+
- 2Al > Cr > Co2+ > Fe2+
- 3Al > Fe2+ > Cr > Co2+
- 4Al > Cr > Fe2+ > Co2+✓
सही उत्तर देखें
Al > Cr > Fe2+ > Co2+
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