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Which of the following is the correct formula for ethyne?
C2тАЛH4тАЛ
C2тАЛH6тАЛ
C2тАЛH2тАЛ
CH4тАЛ
C2тАЛH2тАЛ
Ethyne, commonly known as acetylene, is the simplest member of the alkyne homologous series. It is characterized by a carbon-carbon triple bond, represented by the chemical formula C2тАЛH2тАЛ.
Ethyne, commonly known as acetylene, is the simplest member of the alkyne homologous series. It is characterized by a carbon-carbon triple bond, represented by the chemical formula C2тАЛH2тАЛ.
Think of the bonding in ethyne as a very tight, triple-strength handshake between two people (carbons), where each person is also holding onto one small object (hydrogen) in a straight line.
Alk-yne: 'y-n-e' sounds like 'y-not'тАФtriple the bond, subtract the H's!
CnтАЛH2nтИТ2тАЛ тАФ General formula for the alkyne homologous series (where n=2 for ethyne).
180┬░ тАФ Bond angle in the linear structure of ethyne.
In ethyne (C2тАЛH2тАЛ), each carbon atom is sp hybridized, forming one ╧Г bond with the other carbon atom and one ╧Г bond with a hydrogen atom. The remaining two p-orbitals on each carbon overlap laterally to form two ╧А bonds, resulting in a linear molecule with a bond angle of 180┬░.
Ethyne is the first and simplest member of the alkyne group.
It contains one carbon-carbon triple bond.
It is a highly unsaturated hydrocarbon.
High flame temperature when burned with oxygen (oxy-acetylene welding).
Important feedstock for industrial production of plastics and chemicals.
Highly flammable and can be explosive at high pressures.
Requires careful storage in cylinders containing porous material and acetone.
Oxy-acetylene welding and cutting of metals.
Synthesis of organic compounds like vinyl chloride for PVC production.
IUPAC name: Ethyne. Common name: Acetylene.
Option A (C2тАЛH4тАЛ) is ethene, an alkene.
Option B (C2тАЛH6тАЛ) is ethane, an alkane.
Option D (CH4тАЛ) is methane, the simplest alkane.
C is correct тАФ The chemical formula for ethyne is C2тАЛH2тАЛ.
Remember the general formulas: CnтАЛH2n+2тАЛ for alkanes, CnтАЛH2nтАЛ for alkenes, and CnтАЛH2nтИТ2тАЛ for alkynes to easily derive any member of these series.
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