Question

Identify the incorrect statement.

• A. $Cr^{2+}(d^4 )$ is a stronger reducing agent than $Fe^{2+}(d^6 )$ in water.
• B. 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.
• C. Interstitial compounds are those that are formed when small atoms like H, C or N are trapped inside the crystal lattices of metals
• D. The oxidation states of chromium in $CrO_4^{2-}$ and $Cr_2O_7^{2-}$are not the same.

Answer 1

Answer: (D)

The oxidation states of chromium in $CrO_4^{2-}$ and $Cr_2O_7^{2-}$are not the same.

Answer 2

The correct option is (D) :The oxidation states of chromium in $CrO_4^{2-}$ and $Cr_2O_7^{2-}$are not the same.