Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsProblem involving Equivalent ConceptMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
It was found that 100 g of silver combined with all the chlorine in 56 g of arsenious chloride. The vapour density of arsenious chloride is 6.25 (air = 1). The specific heat of arsenic is 0.08. Given that one litre of air at 0°C and 1 atm weighs 1.3 g. (Ag = 108)
What is the molecular formula of arsenious chloride?
Options:
Answer:
A
Solution:
M(air) = 1.3 × 22.4 = 29.12, so M(chloride) = 6.25 × 29.12 = 182. With valency 3 the empirical formula is AsCl₃ (empirical mass 74.94 + 106.5 = 181.4 ≈ 182), so molecular formula = AsCl₃, matching (a).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept
⏱ 2mℹ️ Source: QB
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