The Measuring of Time by Clocks Is Standard Around the World

question 44

Multiple Choice

The measuring of time by clocks is standard around the world today.World standard time was first introduced in:

• A)the 1900s
• B)the early 2000s
• C)the 1600s
• D)the 1800s
• E)none of the above; there is no standard world time

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Definitions:

All-Cis Form

A molecular configuration where all substituents are positioned on the same side of a double bond or in a cyclic structure.

Aromatic

Relates to organic compounds that contain one or more planar rings of carbon atoms with delocalized π electrons, providing unique stability and chemical properties.

Tropylium Bromide

A chemical compound featuring a tropylium ion, which is positively charged, paired with a bromide ion.

AntiAromatic

Describes compounds that have cyclic, conjugated electron configurations but do not follow Hückel's rule, often being less stable.