MCQ
Which of the element shows $+4$ oxidation state?
- ✓$Sn$
- B$Ra$
- C$Fr$
- D$Sc$
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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.)