1.

Irregular trend in the standard reduction potential value of first row transition elements is due to

Answer»

Regular variation of FIRST and second ionisation enthalpies
Irregular variation of sublimation enthalpies
Regular variation of sublimation enthalpies
Increase in no. of unpaired electrons

Solution :There is no regular trend in the `E^(@)(M^(2+)//M)` values because of irregular variation of ionization energies and sublimation energies of the ATOMS of the members of the transition SERIES.


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