Question

what are alkynes,and five nomenclature of alkynes with common name and iupac name​

Answer 1

Alkynes are organic molecules made of the functional group carbon-carbon triple bonds and are written in the empirical formula of \(C_nH_{2n-2}\). They are unsaturated hydrocarbons. Like alkenes have the suffix –ene, alkynes use the ending –yne; this suffix is used when there is only one alkyne in the molecule. If a molecule contains both a double and a triple bond, the carbon chain is numbered so that the first multiple bond gets a lower number. If both bonds can be assigned the same number, the double bond takes precedence. The molecule is then named "n-en-n-yne", with the double bond root name preceding the triple bond root name (e.g. 2-hepten-4-yne).

Answer 2

Answer:

Explanation:

Alkynes are organic molecules made of the functional group carbon-carbon triple bonds and are written in the empirical formula of CnH2n−2. They are unsaturated hydrocarbons. Like alkenes have the suffix –ene, alkynes use the ending –yne

Examples:

1. C2H2(Ethyne)-simplest alkyne-Acetylene
2. C3H4(Propyne)-Methyl acetylene
3. C4H6(Butyne)

• But-1-yne----Ethyl acetylene
• But-2 -yne----Crotonylene or Dimethyl acetylene

   4.C5H8(Pent-2-yne)Ethyl methyl acetylene