The Cuban Missile Crisis

question 49

Multiple Choice

The Cuban missile crisis:

• A) led to a U.S.-backed invasion of Cuba
• B) showed Kennedy's tendency to back down in a tense confrontation
• C) ended the cold war
• D) brought the United States and the Soviet Union close to nuclear war
• E) saw the United States destroy some missile sites with surgical air strikes

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Definitions:

HOMO

Highest Occupied Molecular Orbital; the electron orbital with the highest energy level that is occupied by electrons in a molecule under ground state conditions.

Mechanism

A detailed description of the step-by-step process by which chemical reactions occur, including the breaking and formation of bonds.

Endo Rule

A guideline in Diels-Alder reactions predicting that the endo product is preferred for thermodynamic or kinetic reasons.

Diels-Alder

A synthetic chemical reaction between a conjugated diene and a substituted alkene, known as the dienophile, to form a cyclic product.