As the D Ecade of the 1920s Drew Toward a Close

question 4

Multiple Choice

As the d ecade of the 1920s drew toward a close, which statement describes Europe?

• A)The Soviet Union was about to make a move on eastern Europe.
• B)Most European countries were on their way to a full recovery from the war.
• C)The Soviet Union was almost ready to take Germany's side against France.
• D)An economic bubble created by circular loans was about to burst.
• E)European countries, except for Germany, were close to full employment levels.

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Definitions:

HOMO

Highest Occupied Molecular Orbital, the topmost energy level occupied by electrons in a molecule under normal conditions.

Allyl Anion

A negatively charged allyl group (a three-carbon chain with a double bond) that acts as a nucleophile in organic reactions.

LUMO

Lowest Unoccupied Molecular Orbital, which is the lowest energy molecular orbital that is currently unoccupied by electrons and can accept an electron.

Pentadienyl Anion

A negatively charged ion formed by removing a proton from a pentadiene, featuring five carbon atoms connected with alternating single and double bonds.