Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsProblem involving Equivalent ConceptEasy2 minQB
ChemistryEasysingle choice

A quantity of 1 g of a metal M²⁺ was discharged by the passage of 1.81 × 10²² electrons. Atomic mass of the metal is

Options:

Answer:
C
Solution:

Moles of electrons = (1.18 × 10²²)/(6.022 × 10²³) = 0.0196 mol. Discharge M²⁺ + 2e⁻ M needs 2 e⁻ per atom, so moles of metal = 0.0196/2 = 0.0098 mol. Atomic mass = 1/0.0098 ≈ 102. Hence (c).

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB

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