A redox reaction involves oxidation of reductant liberating electrons, which are then consumed by an oxidant. The sum of two half reactions give rise to net redox change. In half reaction charge and atoms are always conserved. In the reaction: As_(2) S_(3) + HNO_(3) rarrH_(2)AsO_(4) +H_(2)SO_4, +NOthe element oxidised is:

A redox reaction involves oxidation of reductant liberating electrons,

1.	A redox reaction involves oxidation of reductant liberating electrons, which are then consumed by an oxidant. The sum of two half reactions give rise to net redox change. In half reaction charge and atoms are always conserved. In the reaction: As_(2) S_(3) + HNO_(3) rarrH_(2)AsO_(4) +H_(2)SO_4, +NOthe element oxidised is:
Answer» `FE^(+8//3) to Fe^(+3) + 1/3 E` `Fe^(+8//3) to Fe^(+2) - 2/3 e ` `(Fe^(+8//3))_3 to 3Fe^(+2)+ 2e` `2(Fe^(+8//3))_3 to 3 (Fe^(+3))_2 + 2e` SOLUTION :Electrons and atoms are CONSERVED in half reaction .