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JEE Advanced Chemistry General Organic Chemistry 2022 JEE Advanced 2022 (Paper 1)

JEE Advanced Chemistry Question (2022) — Solution

Question

Consider the following reaction. On estimation of bromine in 1 . 00   g of  R using Carius method, the amount of AgBr formed (in g ) is____[Given: Atomic mass of H = 1 ,   C = 12 ,   O = 16 ,   P = 31 ,   Br = 80 ,   Ag = 108 ]

Options

  1. A. A
  2. B. B
  3. C. C
  4. D. D

Answer

A. A

Step-by-step solution

2 P + 3 Br 2 → 2 PBr 3 Number of moles in 1 gm of  R = 1 250 using Carius method all the Br will be converted into AgBr. So, using POAC method Number of moles of AgBr formed from  R = 2 250 Mass of AgBr formed  = 2 × 188 250 = 1 . 50 gm

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