Which of the following has a C-H stretch that occurs at the lowest stretching frequency?

A) hexane
B) hex-1-ene
C) (E) -hex-2-ene
D) hex-1-yne
E) hex-2-yne

C-H Stretch

Refers to the vibration of a carbon-hydrogen bond in infrared spectroscopy, indicating the presence of C-H bonds in a molecular structure.

Stretching Frequency

A measure related to the energy required for bond stretching in molecular vibrations, commonly observed in infrared spectroscopy.

Hexane

A straight-chain alkane with six carbon atoms, commonly used as a non-polar solvent.