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NEETChemistryd and f Block Elements

Why do the Eo values for the M2+/M redox couples in the first row transition metals show irregularities?

Options

  1. ADue to differences in atomic size
  2. BDue to irregular variation of ionization enthalpies and sublimation enthalpies
  3. CDue to the presence of d electrons
  4. DDue to the number of protons in the nucleus

Correct answer

B. Due to irregular variation of ionization enthalpies and sublimation enthalpies

Step-by-step solution

The irregularities in the Eo values for the M2+/M redox couples can be explained by the irregular variation of ionization enthalpies and sublimation enthalpies.

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