In which of the following reaction(s) H_(2)O_(2) can convert the underlined atom into the prodit with idon =+6 ?

In which of the following reaction(s) H_(2)O_(2) can convert the under

1.	In which of the following reaction(s) H_(2)O_(2) can convert the underlined atom into the prodit with idon =+6 ?
Answer» `CrCl_3 + H_2O_2+OH^(-) to ` `K_2Cr_2 O_7 +H_2O_2 +H_2SO_4 to ` `SO_2 + H_2O_2 + OH^(-) to ` `H_2O_2+ Na_3 AsO_3+ OH^(-) to ` SOLUTION :A) `CrCl_3 to Na_2 CrO_4` B) `K_2 Cr_2O_7 to CrO_5` C) `SO_2 to SO_4^(-)`