AnswersCT-Chemistry BProperties and Uses of Unsaturated HydrocarbonsQuestion 6
6
QuizMultiple Choice

Properties and Uses of Unsaturated Hydrocarbons

Question 6 • CT-Chemistry B

Consider the four hydrocarbons in the table below. One is an alkyne, and the other three are alkenes. HydrocarbonBoiling point (°C)W–23.0X –103.7Y–75.0Z –47.0If these hydrocarbons were similar in size, which one would most likely be an alkyne?

Answer
A
W
B
X
C
Y
D
Z

Explanation

For hydrocarbons of similar size, an alkyne generally has a higher boiling point than an alkene. W has the highest boiling point in the table, at −23.0 °C, so W is most likely the alkyne.

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