Consider the 1,2-Dichloro Derivative of Ethylene in Which One of the Hydrogen

question 64

Multiple Choice

Consider the 1,2-dichloro derivative of ethylene in which one of the hydrogen atoms on each of the carbon atoms in ethylene is substituted with a chlorine atom, giving the structural formula CHClCHCl. Does this molecule have geometrical isomers? Remember that ethylene does not.

• A) yes, because the chlorines can be placed on the same or opposite sides of the double bond
• B) yes, because the chlorines can be placed on either one or both of the carbons
• C) no, because both the formula and bonds are the same in all skeletal structures
• D) no, because the two structures can interconvert through bond rotation
• E) no, because there are less than four atoms bound to each carbon

---

Definitions:

Cocktail Party Effects

The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, as if at a noisy party.

Inattentional Blindnesses

A psychological phenomenon where an individual fails to perceive an unexpected stimulus in plain sight when their attention is focused on another task or aspect of their environment.

Evolutionary Psychology

A contemporary evolutionary perspective used in the social and natural sciences to scrutinize psychological structures.

Neurology

The branch of medicine concerned with the study and treatment of disorders of the nervous system.