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NEETChemistryd and f Block Elements

What is the reason for the low Eo value of Sc?

Options

  1. AThe removal of an electron from the stable d10 configuration of Sc3+
  2. BThe stability of Sc3+ with a noble gas configuration
  3. CThe half-filled t 2g level of Sc2+
  4. DThe removal of an electron from the d5 configuration of Sc2+

Correct answer

B. The stability of Sc3+ with a noble gas configuration

Step-by-step solution

The low Eo value for Sc reflects the stability of Sc3+ which has a noble gas configuration.

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