2}}S{{O}_{4}}+10FeS{{O}_{4}}\,\to \]\[{{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}+5F{{
E
}_{2}}{{(S{{O}_{4}})}_{3}}+8{{H}_{2}}O\] Mohr?s salt
DECOLOURISES
\[
KMN
{{O}_{4}}\] by reducing \[M{{n}^{+
7
}}\] ions to \[M{{n}^{+2}}\] ions.