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Carbanions MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET
Quick Facts
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Carbanions is considered one the most difficult concept.
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10 Questions around this concept.
Solve by difficulty
EASYArrange the carbanions,
in order of their decreasing stability
The pair of electron in the given carbanion, $\mathrm{CH}_3-\mathrm{C} \equiv \mathrm{C}^{\ominus}$ is present in which of the following orbitals?
The pair of electron in the given carbanion, $C H_3 C \equiv C^{-}$, is present in which of the following orbitals?
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Concepts Covered - 1
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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