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Identify the incorrect statement. (1) 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. (2) Interstitial compounds are those that are formed when small atoms like $H , C$ or $N$ are trapped inside the crystal lattices of metals. (3) The oxidation states of chromium in $CrO _{4}^{2-}$ and $Cr _{2} O _{7}^{2-}$ are not the same. (4) $Cr ^{2+}\left( d ^{4}\right)$ is a stronger reducing agent than $Fe ^{2+}\left( d ^{6}\right)$ in water.
Identify the incorrect statement.
(1) 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.
(2) Interstitial compounds are those that are formed when small atoms like $H , C$ or $N$ are trapped inside the crystal lattices of metals.
(3) The oxidation states of chromium in $CrO _{4}^{2-}$ and $Cr _{2} O _{7}^{2-}$ are not the same.
(4) $Cr ^{2+}\left( d ^{4}\right)$ is a stronger reducing agent than $Fe ^{2+}\left( d ^{6}\right)$ in water.
Chemistry
Identify the incorrect statement.
(1) 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.
(2) Interstitial compounds are those that are formed when small atoms like $H , C$ or $N$ are trapped inside the crystal lattices of metals.
(3) The oxidation states of chromium in $CrO _{4}^{2-}$ and $Cr _{2} O _{7}^{2-}$ are not the same.
(4) $Cr ^{2+}\left( d ^{4}\right)$ is a stronger reducing agent than $Fe ^{2+}\left( d ^{6}\right)$ in water.

Correct option (3)

Explanation:

  • Interstitial compounds are those formed when small atoms such as H, B, C, or N are trapped inside metal crystal lattices.
  • Fact: On the basis of standard reduction potential, Cr2+ is a more powerful reducing agent in water than Fe2+.
  • Due to their ability to adapt, transition metals are one of the best available catalysts. Multiple oxidation states, as well as the ability to form complexes
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