Within each transition series, the oxidation statesA. first increase till the middle of the period and then decreaseB. decrease regularly in moving form left to rightC. first increase till the middle of period and then increaseD. increase regularly in moving from left to right

Within each transition series, the oxidation statesA. first increase t

1.	Within each transition series, the oxidation statesA. first increase till the middle of the period and then decreaseB. decrease regularly in moving form left to rightC. first increase till the middle of period and then increaseD. increase regularly in moving from left to right
Answer» Correct Answer - A There exists a general trend of lesser number of oxidation states at each end of the series and a higher number in the middle. The lesser number of oxidation states in the beginning of the series is due to the presence of too few (n - 1) d electrons to lose or share, towards the end of the series it can be ascribed to the presence of too many (n - 1) d electrons and thus fewer unpaired electrons as well as empty orbitals to share electrons with the ligands.

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Within each transition series, the oxidation statesA. first increase till the middle of the period and then decreaseB. decrease regularly in moving form left to rightC. first increase till the middle of period and then increaseD. increase regularly in moving from left to right

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