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Chapter 9: Q69P (page 451)

Which member in each pair in Problem 68 is a better leaving group?

Short Answer

Expert verified
  1. H2O
  2. H2O
  3. H2S
  4. HS-
  5. I-
  6. Br-

Step by step solution

01

Definition of leaving group-

The IUPAC defines a leaving group as an atom or group of atoms that separates from a substrate's major or remaining portion during a reaction or fundamental step of a reaction. However, the word is frequently restricted in everyday speech to a fragment that leaves a heterolytic bond cleavage with a pair of electrons.

02

 Final Answer

The weaker base is a better leaving group. The member in each pair which is a better leaving group is-

  1. H2O
  2. H2O
  3. H2S
  4. HS-
  5. I-
  6. Br-

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