JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 3
question_answer
Amount of of potassium dichromate in grams required to oxidise 20.0 g of \[F{{e}^{2+}}\] in \[FeS{{O}_{4}}\] to \[F{{e}^{3+}}\] if the reaction is carried out in an acidic medium is ________. (Molar masses of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and \[FeS{{O}_{4}}\] are 294 and 152 respectively.)