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Guilherme Mazui

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What is the Difference Between 1-Butyne and 2-Butyne?

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The difference between 1-butyne and 2-butyne lies in the position of the double bond in each molecule.

1-butyne, also known as but-1-yne or ethylacetylene, has a chemical formula of C4H6. In this compound, the double bond is located between the first and second carbon atoms.

2-butyne, also known as but-2-yne or dimethylacetylene, also has a chemical formula of C4H6. However, in this case, the double bond is located between the second and third carbon atoms.

Both 1-butyne and 2-butyne are alkenes, which are unsaturated hydrocarbons containing at least one carbon-carbon double bond. The lack of free rotation around carbon-carbon double bonds in alkenes makes their carbon chains less flexible and more rigid than those of alkanes with the same number of carbon atoms.

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  • What is the Difference Between 1-Butyne and 2-Butyne?
  • Comparative Table: 1-Butyne vs 2-Butyne

    • Comparative Table: 1-Butyne vs 2-Butyne

    The main difference between 1-butyne and 2-butyne lies in the position of the triple bond within the molecule. Here is a comparison table highlighting the differences between the two:

    Property 1-Butyne 2-Butyne
    Terminal/Non-terminal Alkyne Terminal Non-terminal
    Position of Triple Bond Connects C1 and C2 Connects C2 and C3
    Physical State Colorless gas Colorless liquid
    Chemical Reactivity Reacts with ammoniacal AgNO3 solution, forming a white precipitate (silver 1-butynide) Does not react with ammoniacal AgNO3 solution
    Chemical Reactivity Reacts with ammoniacal CuCl2 solution, forming a red precipitate (copper 1-butynide) Does not react with ammoniacal CuCl2 solution

    Both 1-butyne and 2-butyne have the same chemical formula, C4H6, but their different molecular structures result in distinct chemical and physical properties.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.