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In acetylene molecule, between the carbon atoms there are
In acetylene molecule, between the carbon atoms there are
Updated On: Apr 2, 2024
- three sigma bonds
- two sigma and one pi bonds
- one sigma and two pi bonds
- three pi bonds
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The Correct Option is C
Solution and Explanation
The structure of acetylene is
$ {H - C $ \overset{{1 \sigma}}{ {\equiv }} \underset{{ 2 \pi}}{ { \equiv }}$ 1 \sigma 2\pi C - H }$
Hence, in acetylene molecule, there are one sigma and two pi bonds are present between carbon atoms.
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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
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