Multiple choice

Identify the incorrect statement.

  1. Fe3+ is more stable than Fe2+.

  2. Mn2+ can be easily oxidised to Mn3+.

  3. Mn shows the greatest variation in possible oxidation numbers among 3d-series elements.

  4. The correct electronic configuration of Cr is [Ar] 3d5, 4s1.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mn2+: 3d5 Mn3+: 3d4 The electronic configuration of Mn2+is more stable than that of Mn3+. Hence, Mn2+ cannot be easily oxidised to Mn3+.

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