InterviewSolution
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InterviewSolution
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0.22V28. In which of the following arrangements theorder is not according to the propertyindicated against it?(1) A13+ <Mg2+ < Nat <F-- increasingionic size(2) B<C<N<- increasing firstionization potential(3) I<Br <F<CI - increasing electron gainethalpy (with negative sign)(4) Li <Na <K<Rb - increasing metallicradius |
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Answer» (b) : As we move from left to right across a period, ionisation enthalpy increases with increasing atomic number. So the order of increasing ionisation enthalpy should be B < C < N < O. But N(1s2 2s2 2p3 ) has a stable half filled electronic configuration. So, ionization enthalpy of nitrogen is greater than oxygen. So, the correct order of increasing the first ionization enthalpy is B < C < O < N. answer is option (2)B<C<N<O 2) is the answer for you Above answers are absolutely correct.. |
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