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Question

What amount of bromine will be required to convert 2gm of Phenol Into 2,4,6-Tribromophenol?


A

4.00

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B

2.00

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C

10.22

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D

6.00

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Solution

The correct option is C

10.22


Explanation for correct option:

(c )10.22

Step 1: Equation

File:2,4,6-tribromophenol synthesis.PNG - Wikipedia

Step 2: writing the equation with atomic units required for each substance:

Phenol+3Br22,4,6-tribromophenol+3HBr94u480u331u243u

Step 3: calculating quantity of bromine if 2gm of phenol is used:

Phenol+3Br22,4,6-tribromophenol+3HBr2gxg

  • 94gofphenolrequires=480gofBr2Therefore,2gofphenolrequires=(48094)×2=10.22g.
  • To convert 2gm phenol into2,4,6-Tribromophenol, 10.22grams bromine will be required
  • Therefore the correct option is (c ) 10.22

The explanation for incorrect options:

10.22grams of bromine will be required. Hence, options (A),(B), and (D) are incorrect.

Therefore the correct option is (c ) 10.22.


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