What IR Absorption Is Characteristic of the Terminal C-H Stretch

question 19

Multiple Choice

What IR absorption is characteristic of the terminal C-H stretch in terminal alkynes?

• A) 3500 cm^-1
• B) 3300 cm^-1
• C) 2400 cm^-1
• D) 2250 cm^-1
• E) 1710 cm^-1

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Definitions:

Hypotonic

Referring to a solution that has a lower concentration of solutes relative to another solution, thereby causing water to flow into the cell by osmosis.

Hypertonic

A solution that has a higher solute concentration compared to another solution, leading to osmosis out of the cell.

Isotonic

Describes two fluids that have identical solute concentrations.

Electron Transfer Chain

A sequence of protein complexes and small molecules involved in the transfer of electrons, which generates a gradient used to produce ATP in cells.