STANDARDChemistry-Oxidation and Reduction
STANDARD Chemistry Oxidation States MCQ Question
Type: MCQ-conceptual-Medium
Which of the following oxidation numbers is not correctly matched?
A
P in NH₂PO₄ = +5
B
Ni in [Ni(CN)₆]⁴⁻ = +2
C
P in Mg₂P₂O₇ = +6
D
Cr in (NH₄)₂Cr₂O₇ = +6
Correct Answer
Option C
Detailed Explanation
In Mg₂P₂O₇, the oxidation state of P is +5, not +6. The calculation is based on balancing the charges in the compound.
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