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JEE Main 202523 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
23 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Alcohols Phenols and Ethers

JEE Main 2025 · 23 January · Morning Shift · Chemistry · Alcohols Phenols and Ethers

What amount of bromine will be required to convert 2 g of phenol...

What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in gmol−1\mathrm{g} \mathrm{mol}^{-1} of C,H,O,Br\mathrm{C}, \mathrm{H}, \mathrm{O}, \mathrm{Br} are 12,1,16,8012,1,16,80 respectively )

Options

  1. A20 .44 g
  2. B4.0 g
  3. C6.0 g
  4. D10.22

Correct answer

D. 10.22

Step-by-step solution

 Moles of phenol =294=0.021∴ Moles of bromine =0.021×3=0.064∴ Mass of bromine =0.064×160=10.22g\begin{aligned} & \text{ Moles of phenol }=\frac{2}{94}=0.021 \\ & \therefore \text{ Moles of bromine }=0.021 \times 3=0.064 \\ & \therefore \text{ Mass of bromine }=0.064 \times 160=10.22 \mathrm{ g}\end{aligned}
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