what is structure of ethyne ?
Answers
Ethyne or acetylene, HC=CH, is the simplest alkyne example. Since a triple bond is present and each carbon is attached to 2 atoms (1 H and 1 C), the geometry is linear.
Answer:
How is Ethyne Prepared?
Ethyne can be prepared by subjecting methane to partial combustion. This compound can also be prepared from the hydrolysis of calcium carbide (a chemical compound with the formula CaC2, also known as calcium acetylide). The chemical equation for this reaction between calcium carbide and water is provided below.
H2O + CaC2 → C2H2 + Ca(OH)2
Thus, the hydrolysis of calcium carbide produces calcium hydroxide and ethyne as the final products.
Structure of Ethyne Molecules
The ethyne molecule features a triple bond between two carbon atoms, each of which is singly bonded to one other hydrogen atom. It can be noted that all four atoms align in a straight line with bond angles of approximately 180o. It can also be noted that the bond length of the carbon-hydrogen bond in the ethyne molecule is roughly equal to 106 picometres whereas the carbon-carbon bond length in the molecule is approximately equal to 120.3 picometres. The structure of the ethyne molecule is illustrated below.
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