Allene,C₃H₄ (Shown Below),is One Component of Gas Used for High-Temperature

question 8

Multiple Choice

Allene,C₃H₄ (shown below) ,is one component of gas used for high-temperature welding. According to the valence bond model,which is a proper description of the bonding on the central carbon atom in allene?

• A)It shares four π bonds,two with each carbon atom on either side.
• B)It shares four σ bonds,two with each carbon atom on either side.
• C)It shares one σ bond and one π bond with each carbon atom on either side.
• D)It shares two σ bonds with the carbon atom on the left,and two π bonds with the carbon atom on the right.
• E)It shares two σ bonds with the carbon atom on the right,and two π bonds with the carbon atom on the left.

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