NEET2020Chemistry-Coordination Compounds
NEET 2020 Chemistry Oxidation States MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Identify the incorrect statement.
A
Interstitial compounds are those that are formed when small atoms like H, C or N are trapped inside the crystal lattices of metals.
B
The oxidation states of chromium in CrO₄²⁻ and Cr₂O₇²⁻ are not the same.
C
Cr²⁺ (d⁴) is a stronger reducing agent than Fe²⁺ (d⁶) in water.
D
The transition metals and their compounds are known for their catalytic activity due to their ability to adopt multiple oxidation states and to form complexes.
Correct Answer
Option B
Detailed Explanation
The oxidation states of chromium in CrO₄²⁻ and Cr₂O₇²⁻ are both +6, so statement 2 is incorrect.
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