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QJEEM25Ch2e7d: JEE Main 2025 Chemistry - Class 12 JEEM25Ch2e7d Solution: What amount of bromine will be required to convert 2 g of…

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 )

Multiple Choice Options

  • A 6.0 g
  • B 10.22 g
  • C 20.44 g
  • D 4.0 g

Step-by-Step Verified Solution

JEE Main 2025 (Online) 23rd January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 3 English Explanation

amp; Moles of phenol =294=0.021amp;∴ Moles of bromine =0.021×3=0.064amp;∴ Mass of bromine =0.064×160=10.22 g\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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