Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsProblem involving Equivalent ConceptEasy2 minQB
ChemistryEasymultiple choice
A metal (M) forms a hydrated sulphate, isomorphous with ZnSO₄·7H₂O. If the sulphate contains 20% metal, by weight, which of the following is/are correct for the metal?
Options:(select one or more)
Answer:
C
Solution:
Isomorphous with ZnSO₄·7H₂O means the formula is MSO₄·7H₂O with M bivalent. Then A/(A + 96 + 126) = 0.20 A = 0.25 x 222 A = 55.5 ≈ 56, so the metal is iron (A = 56, E = 28), not magnesium (A = 24 would give only 9.8% metal). The only correct statement is (c), the metal is bivalent.
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB
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