In each of thefollowingquestionsa Statementof Assertion(A ) isgivenfollowedby acorrespondingstatementof Reason(R ) Justbelow it . Of thestatementmarkthe correctanswer as Assertion. Whenthe atoms of firsttransitionseriesionize the 4s- orbitalelectronsare ionized beforethe 3d-orbitalelectrons . Reason . Theenergyof 3d- orbital electronis lower than thatof 4s-orbitalelectronic .

In each of thefollowingquestionsa Statementof Assertion(A ) isgivenfol

1.	In each of thefollowingquestionsa Statementof Assertion(A ) isgivenfollowedby acorrespondingstatementof Reason(R ) Justbelow it . Of thestatementmarkthe correctanswer as Assertion. Whenthe atoms of firsttransitionseriesionize the 4s- orbitalelectronsare ionized beforethe 3d-orbitalelectrons . Reason . Theenergyof 3d- orbital electronis lower than thatof 4s-orbitalelectronic .
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