Using the data given in Q.8 find out in which option the order of reducing power is correct.

Again referring to data and explanation of Q. 8, if the standard potential of an element is negative value, then H2 gas is more stable than the reduced form of the element, which means these elements can reduce hydrogen ions H+ ions. The more negative the value, the more its reducing power. So the order of reducing values in decreasing order is Cr > Cr3+ > Cl- > Mn2+. The correct option is (ii).

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