Question:

The correct order of nucleophilicity is

Updated On: Jul 6, 2024
  • \(F^–\) > \(OH^–\)

  • \(H_2O \)\(OH^-\)

  • \(ROH\) > \(RO^-\)

  • \(\text{NH}_2^{-}\) > \(NH_3\)

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The Correct Option is D

Solution and Explanation

The correct answer is (D) : \(\text{NH}_2^{-}\) \(> NH_3\)
\(NH_3\) \(→\)    \(\text{NH}_2^{-}\) +              \(H^+\)
 Acid      Conjugate base
Conjugate base of acid is always a stronger nucleophile.
 

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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: