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JEE Main 20202 SeptemberEvening Shift
Exam
JEE Main
Year
2020
Date
2 September
Shift
Evening Shift
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JEE Main 2020 · 2 September · Evening Shift · Chemistry · Haloalkanes and Haloarenes

The major product obtained from E _ 2 -elimination of 3 - bromo - 2...

The major product obtained from E2{E}_{2}-elimination of 3−bromo−2−fluoropentane3 - bromo - 2 - fluoropentane isThe major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane isThe major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane isThe major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane isThe major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane isThe major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane is

Options

  1. AThe absolute value of the electron gain enthalpy of halogens satisfies:
  2. BThe absolute value of the electron gain enthalpy of halogens satisfies:
  3. CThe absolute value of the electron gain enthalpy of halogens satisfies:
  4. DThe absolute value of the electron gain enthalpy of halogens satisfies:

Correct answer

B. The absolute value of the electron gain enthalpy of halogens satisfies:

Step-by-step solution

Electronegativity of FF is higher than BrBr so hydrogen near to fluorine is more acidic hence it will leave in presence of base.

The major product obtained from E _ 2 -elimination of 3 - bromo - 2 - fluoropentane is

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