MCQ
Which of the following has maximum difference in $1^{st}$ and $2^{nd}$ ionisation enthalpy.
- ✓$ \ce{1 s^2, 2 s^2, 2 p^6, 3 s^1}$
- B$\ce{1 s^2, 2 s^2, 2 p^6, 3 s^1 }$
- C$ \ce{1 s^2, 2 s^2, 2 p^1} $
- D$ \ce{1 s^2, 2 s^2, 2 p^6} $
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${I^ - } + \,ClO_3^- + \,{H_2}S{O_4}\, \to \,C{l^ - }\, + \,HSO_4^ - \, + \,{I_2}$
(no free $H^+$ is present). Select the correct statement in the balanced equation (Coefficients in smallest whole number ratio.)