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

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JEE Main

IMPORTANT

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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?

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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 13

For the following balanced redox reaction:

2 {MnO}_{4}^{-} + 8 H^{+} + {Br}_{2} ⟶ 2 {Mn}^{2 +} + 2 {BrO}_{3}^{-} + 2 H_{2} O

. If the molecular weight of

{MnO}_{4}^{-}

and

{Br}_{2}

be

M_{1}, M_{2}

, respectively, then: