NEET2014Chemistry-Inorganic Chemistry
NEET 2014 Chemistry Oxidation States MCQ Question
Type: MCQ-conceptual-Medium-Class 11
In acidic medium, H₂O₂ changes Cr₂O₇²⁻ to CrO₅ which has two (O–O) bonds. Oxidation state of Cr in CrO₅ is
A
+5
B
+3
C
+6
D
-10
Correct Answer
Option A
Detailed Explanation
In CrO₅, Cr is in the +5 oxidation state as the peroxo linkage contribute each, balancing the overall charge.
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