You are given a bottle of an organic liquid and told it must be either cyclohexane or 1-hexene. Which of the following statements is (are) true about these two compounds?

Question

Quizplus · Accepted Answer

A) is not true because both compounds have the same molecular formula and, therefore, the same molecular ion peak at m/z 84. 
B) is true because 1-hexene has a C=C bond, which results in an absorption around 1650 cm-1 in the infrared spectrum, while cyclohexane does not have a C=C bond and, therefore, does not show this absorption. 
C) is true because both compounds have C-H bonds, which result in absorptions around 2950 cm-1 in the infrared spectrum. 
D) is true because both B and C are true. 
E) is not true because statement A is not true.

You Are Given a Bottle of an Organic Liquid and Told