NCERT Class XII Chemistry
Chapter - The d- and f-Block Elements
Questions with Solutions
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Question : 45
Total: 49
Which is a stronger reducing agent Cr2 + or Fe2 + and why?
Solution:
Cr2 + is stronger reducing agent than Fe2 +
Reason: d4 → d3 occurs in case of Cr2 + to Cr3 + .
But d6 → d5 occurs in case of Fe2 + to Fe3 + .
In a medium (like water) d3 is more stable as compared to d5
.
Reason: d
But d
In a medium (like water) d
.
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