Which are correct about the reaction?
${FeS}_{2} + O_{2} ⟶ {Fe}_{2} O_{3} + {SO}_{2}$

50% studentsanswered this correctly

Important Questions on Some Basic Concepts, Mole Concept and Stoichiometry

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.7>Q 11

150 mL \frac{M}{10} Ba {({MnO}_{4})}_{2}

in acidic medium can completely oxidises:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 1 - Some Basic Concepts, Mole Concept and Stoichiometry>DPP 1.7>Q 12

A mixture of ${Cu}_{2} S$ and $CuS$ on oxidation by $Al {({MnO}_{4})}_{3}$ in acidic medium gives ${Cu}^{2 +}$ and ${SO}_{2}$ . If molar masses of ${Cu}_{2} S, CuS$ and $Al {({MnO}_{4})}_{3}$ are $M_{1}, M_{2}$ and $M_{3}$ , respectively, then for this reaction which one are correct?