Question

X and Y are two hydrocarbons. X is an alicyclic compound. The number of carbon atoms as well as the number of hydrogen atoms in both these compounds are the same. Which of the following pairs represent the IUPAC name of X and any one position isomer of Y? (Symbols are not real)

• A. Cyclohexane, Hexane
• B. Cyclohexane, Hex-4-ene
• C. Cyclohexene, Hex-2-ene
• D. Cyclohexane, Hex-2-ene

Answer 1

Answer:

D. Cyclohexane, Hex-2-ene

• An alicyclic compound is a type of organic compound that contains one or more rings of atoms, similar to those found in aromatic compounds, but without the characteristic alternating double and single bonds of aromaticity.

• They are essentially aliphatic compounds arranged in a ring structure.

• Example: Cyclohexane is a classic example of an alicyclic hydrocarbon.

Hydrocarbons:

• Hydrocarbons are organic compounds that consist entirely of hydrogen and carbon atoms.

• They are the simplest organic compounds and form the basis of many organic molecules.

Compound X:

• X is described as an alicyclic compound.

• Given the answer pair, X is likely Cyclohexane.

• The molecular formula of Cyclohexane (C₆H₁₂) fits the description of an alicyclic hydrocarbon.

Compound Y:

• Y is a hydrocarbon.

• It has the same number of carbon and hydrogen atoms as X. Therefore, Y also has the molecular formula C₆H₁₂.

• Y is not alicyclic (implied by X being alicyclic and the question asking for a position isomer of Y, suggesting Y is not a ring).

• The answer suggests Y could be Hex-2-ene.

• Hex-2-ene is an alkene (a hydrocarbon with at least one carbon-carbon double bond) and has the molecular formula C₆H₁₂.