Multiple choice

Which of the following statements are false?

P. Fe3+ is less stable than Fe2+. Q. Mn2+ can be easily oxidised to Mn3+. R. Mn shows the greatest variation in possible oxidation numbers among 3d series elements. S. The correct electronic configuration of Cr is 3d54s1.

  1. P and Q

  2. P and R

  3. P and S

  4. Q and R

  5. R and S

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A Correct answer
Explanation

The electronic configuration of Fe3+ is more stable than that of Fe2+. The electronic configuration of Mn2+ is more stable than that of Mn3+. Hence, Mn2+ cannot be easily oxidised to Mn3+.