Question:
A cyclic hydrocarbon molecule has all the carbon and hydrogen is a single plane. All the carbon-carbon bonds are of same length, less than $ 1.54\,?? but more than $ 1.34 \,?? $ The C-C bond angle will be:
A cyclic hydrocarbon molecule has all the carbon and hydrogen is a single plane. All the carbon-carbon bonds are of same length, less than $ 1.54\,?? but more than $ 1.34 \,?? $ The C-C bond angle will be:
Updated On: Jun 20, 2022
- $ {{109}^{o}}28 $
- $ {{100}^{o}} $
- $ {{180}^{o}} $
- $ {{120}^{o}} $
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The Correct Option is D
Solution and Explanation
Cyclic hydrocarbon, with carbon-carbon bond length between $ 1.34\, ?? and $ 1.54\,?? is benzene in which due to resonance, C-C, bond length is $ 1.39\, ?? $ (i. e., between $ 1.34\,??1.54\,?? ). Benzene is a hexagonal molecule with bond-angle equal to $ {{120}^{o}}. $
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Concepts Used:
Organic Chemistry – Some Basic Principles and Techniques - Reaction Mechanism
SN1 Reaction Mechanism:
SN1 reaction mechanism takes place by following three steps –
- Formation of carbocation
- Attack of nucleophile
- Deprotonation
SN2 Reaction Mechanism:
The SN2 reaction mechanism involves the nucleophilic substitution reaction of the leaving group (which generally consists of halide groups or other electron-withdrawing groups) with a nucleophile in a given organic compound.
Electrophilic Aromatic Substitution Reaction Mechanism:
The mechanism of an electrophilic aromatic substitution reaction contains three main components which are:
- A new sigma bond from C=C is formed during the reaction in the arene nucleophile.
- Due to the breaking of the C-H sigma bond, a proton is removed.
- The C=C bond is reformed and it restores the aromaticity of the compound.
Electrophilic Substitution Reaction Mechanism:
The electrophilic substitution reaction mechanism is composed of three steps, which will be discussed more below.
- Electrophile Generation
- Carbocation Formation
- Proton Removal