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# Which of the following is oxidized by $H_2O_2$ in the alkaline medium

$\begin{array}{1 1}(a)\;HCHO\\(b)\;Mn(II)\;salts\\(c)\;Cr(III)\;salts\\(d)\;\text{All}\end{array}$

Can you answer this question?

$HCHO,Mn(II)\;salts,Cr(III)\;salts$
Hence (d) is the correct answer.
answered Jan 23, 2014