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Carbanions - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main
Quick Facts
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Carbanions is considered one the most difficult concept.
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23 Questions around this concept.
Solve by difficulty
Arrange the carbanions,
in order of their decreasing stability
The correct order of statbility for the following alkoxides is:
The ascending acidity order of the following H atoms is : :
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The correct order of stability of carbanions is
The most stable carbanion among the following is
The stability of carbanions
follows the order
Ionic species are stabilised by the dispersal of charge. Which of the following carboxylate ion is the most stable?
The increasing order of basicity for the following intermediates is (from weak to strong)
The increasing order of the acidity of the α—hydrogen of the following compounds is :
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Carbanions
The carbon species carrying a negative charge on carbon atoms is called carbanion. Carbon in carbanion is generally sp3 hybridised and its structure is distorted tetrahedron as shown in the figure given below. Carbanions are also unstable and reactive species.
The stability order of carbanions:-
1. The stability of carbanions is influenced by resonance, inductive effect and s-character of orbitals. The group having +I effect decreases the stability while groups having -I effect increase the stability of carbanions.
2. The groups like -NO2, -CN, -COOC2H5, halogens and C6H5-(electron attracting) increase the stability of carbanions.
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