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Chapter 11: Q 11-11-42 E-f (page 350)

Which reactant in each of the following pairs is more nucleophilic? Explain.

F)C≡N-or-OCH3

Short Answer

Expert verified

C≡N-

Step by step solution

01

Nucleophile

The nucleophiles are ions possessing one electron pair. The lone electron pairs on the nucleophiles are ready to bond with each other.

02

Rules to identify more nucleophilic species

  1. Nucleophile attacking the same atom then nucleophilicity is same as basicity that more basic species is more nucleophilic in nature.
  2. Nucleophilicity increases in going down in a group of the periodic tables.

A negatively charged nucleophile is more nucleophilic than a neutral nucleophile due to a negative charge

03

More nucleophiles among C≡N- or -OCH3

On the basis of:

  1. Rule1: Nucleophile attacking the same atom then nucleophilicity is same as basicity that more basic species is more nucleophilic in nature.

Also on the basis of the reactivity cyanide ion is more reactive

C≡N-is more nucleophilic than-OCH3

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