Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsProblem involving Equivalent ConceptMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
A quantity of 0.4 g of oxygen and 4.0 g of a halogen combine separately with the same amount of metal.
The atomic weight of the halogen can never have the value
Options:
Answer:
C
Solution:
Atomic weight = equivalent weight × valency (an integer). With E = 80 or E = 40, the atomic weight must be an integer multiple of 40 at minimum 40: 40, 80, 120, 160 are possible; 20 would need valency 1/2, impossible. Hence 20, matching (c).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB
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