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JEE Main20231 Feb 2023Morning ShiftChemistryd and f Block ElementsActual

Highest oxidation state of Mn is exhibited in Mn 2 O 7 . The correct statements about Mn 2 O 7 are (A) Mn is tetrahedrally surrounded by oxygen atoms (B) Mn is octahedrally surrounded by oxygen atoms (C) Contains Mn - O - Mn bridge (D) Contains Mn - Mn bond. Choose the correct answer from the options given below

Options

  1. AA and C only
  2. BA and D only
  3. CB and D only
  4. DB and C only

Correct answer

A. A and C only

Step-by-step solution

Each Mn is tetrahedrally surrounded by oxygen atoms. In addition, there is a bridging two-coordinated oxygen atom between two tetrahedral units. The bridged Mn - O has different bond length than the tetrahedrally surrounded Mn - O bond lengths. So, the correct statement is only A and C.

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