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JEE Main 20199 JanuaryMorning Shift
Exam
JEE Main
Year
2019
Date
9 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JEE Main 2019 · 9 January · Morning Shift · Chemistry · Haloalkanes and Haloarenes

In the reaction given below what will be the major product at the...

In the reaction given below what will be the major product at the end :

In the reaction given below what will be the major product at the end :

Options

  1. AWhat regulates the opening and closing of stomata?
  2. BWhat regulates the opening and closing of stomata?
  3. CWhat regulates the opening and closing of stomata?
  4. DWhat regulates the opening and closing of stomata?

Correct answer

D. What regulates the opening and closing of stomata?

Step-by-step solution

The first step is anti addition of Br2{Br}_{2} across the double bond.

In the reaction given below what will be the major product at the end :

In the second step, EtO−Et{O}^{-} (nu−( n{u}^{-} ) gets added by SN1{S}_{N}1 mechanism. And Br−B{r}^{-} from the dashed position acts as the leaving group leads to the formation of a stable benzylic carbocation.

In the reaction given below what will be the major product at the end :

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