MCQ
Ionic radii of
- A$T{i^{4 + }} < M{n^{7 + }}$
- B$^{35}C{l^ - }{ < ^{37}}C{l^ - }$
- C${K^ + } > C{l^ - }$
- ✓${P^{3 + }} > {P^{5 + }}$
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Arrange the hydrogens $a, b, c, d$ in decreasing order of their reactivities towards chlorination
where $pK_1 , pK_2, pK_3$ are first ionization constants. Incorrect order is