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The elements of 3d transition series are...

The elements of 3d transition series are given as -
Sc, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn.
Answer the following :
Which element is a strong reducing agent in + 2 oxidation state and why ?

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Verified by Experts

Chromium (Cr) acts as a strong reducing agent in + 2 oxidation state. This is because, `Cr^(2+)` is oxidized to `Cr^(3+)` which has a stable half filled `t_(2g)`- orbital (i.e., `t_(2g)^(3)`) in the 3d - subshell.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -SOLVED CBSE SCANNER
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