molecular formula of butyne is O C4H10 O C4H12 O C4H6 O C4H8
The Correct Answer and Explanation is:
The correct molecular formula for butyne is C4H6.
Butyne is an unsaturated hydrocarbon belonging to the alkene family, which has a triple bond between two carbon atoms. The two isomers of butyne are 1-butyne (ethylacetylene) and 2-butyne (dimethylacetylene). Both have the same molecular formula, C4H6, but differ in the arrangement of their atoms.
To break this down:
- Butyne is made up of 4 carbon (C) atoms and 6 hydrogen (H) atoms.
- The carbon atoms form a chain, and there is a triple bond between two of them, making the molecule unsaturated.
- The general structure of butyne can be represented as C≡C and the remaining C atoms are single bonded to H atoms, giving it the formula C4H6.
Now let’s look at the other formulas you provided and why they are not correct for butyne:
- C4H10 is the molecular formula for butane, an alkane, which has no double or triple bonds and is saturated with hydrogen atoms.
- C4H12 does not exist as a stable molecular formula because hydrocarbons with more hydrogen atoms than the stable number for butane (C4H10) would lead to an unstable configuration, which is not chemically feasible.
- C4H8 is the formula for butene, a compound containing a double bond between two carbon atoms, meaning it is an alkene and is unsaturated, but it is not the same as butyne.
In conclusion, butyne’s correct molecular formula is C4H6, and it consists of four carbon atoms and six hydrogen atoms, with a triple bond between two carbon atoms.
