The Apparent Path of the Sun Across the Celestial Sphere

question 60

Multiple Choice

The apparent path of the Sun across the celestial sphere during a year is called the

• A) prime meridian.
• B) ecliptic plane.
• C) circumpolar plane.
• D) celestial equator.

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Definitions:

Grignard Reagent

An organomagnesium compound used in chemical reactions to form carbon-carbon bonds, instrumental in organic synthesis.

Mg/Diethylether

A common Grignard reaction solvent system involving magnesium metal in diethyl ether, used in organic synthesis to form carbon-carbon bonds.

Substrates

The reactants or substances upon which an enzyme acts in biochemical reactions, or the starting materials in chemical syntheses.

Ketone Treatment

A process or reaction involving the use of ketones, often for chemical synthesis or modification of compounds.