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NEET2020Chemistryd and f Block ElementsActual

Identify the incorrect statement.

Options

  1. AThe transition metals and their compounds are known for their catalytic activity due to their ability to adopt
  2. BInterstitial compounds are those that are formed when small atoms like H , C or N are trapped inside the cryst
  3. CThe oxidation states of chromium in CrO 4 2 − and Cr 2 O 7 2 − are not the same.
  4. DCr 2 + d 4 is a stronger reducing agent than Fe 2 + + d 6 in water.

Correct answer

C. The oxidation states of chromium in CrO 4 2 − and Cr 2 O 7 2 − are not the same.

Step-by-step solution

Chromate CrO 4 - 2 ⇒ oxidation state = + 6 dichromate Cr 2 O 7 - 2 ⇒ = + 6 oxidation state are same.

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