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NEETChemistryHaloalkanes and Haloarenes

Match the following

Options

  1. A(A) Q, (B) P, (C) R,S, (D) Q,S
  2. B(A) S, (B) R, (C) R, (D) P,S
  3. C(A) R, (B) Q, (C) S, (D) Q,S
  4. D(A) Q, (B) Q, (C) R,S, (D) P,S

Correct answer

D. (A) Q, (B) Q, (C) R,S, (D) P,S

Step-by-step solution

(A) Match with (Q) The formation of CH ₂= CH - CD ₃ can be explained on the basis of the fact that C - D bond is much stronger than C - H bond. (B) match with (Q) Reactivity of PhCHBrCH ₃ is greater than Ph CHBrCD ₃ because C - D bond is more stronger than C - H bond. (C) match with (R) and (S) In the step (II), a slow unimolecular elimination occurs in the conjugate base of the reactant and hence this mechanism is called E₁ C B or carbanion mechanism. Since step (I) must be reversible, if ethanol containing C ₂ H

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