At 25°C the Elements Indicated by the Shaded Area in the Following

question 118

Multiple Choice

At 25°C the elements indicated by the shaded area in the following periodic table are all

• A)diatomic molecules.
• B)gases.
• C)liquids.
• D)solids.

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Definitions:

IR

Infrared (IR) spectroscopy is a technique used for identifying and studying chemicals through the absorption of infrared light, which causes molecular vibrations.

IR Absorption

The process by which molecules absorb infrared radiation, used in spectroscopy to identify chemical compounds.

Ethyne

A hydrocarbon compound with the formula C2H2, known as acetylene, used as a fuel and a building block in organic synthesis.

Dipole Moment

A measure of the polarity of a chemical bond within a molecule, quantifying the separation of positive and negative charges in a molecule.