You Are Given a Bottle of an Organic Liquid and Told

question 10

Multiple Choice

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?

• A) The two compounds can be differentiated by their mass spectra because they will have molecular ion peaks at different m/z.
• B) 1-Hexene will show an absorption at 1650 cm^-1 but cyclohexane will not.
• C) Both cyclohexane and 1-hexene will show C-H absorptions at about 2950 cm^-1.
• D) Statements B (1-Hexene will show an absorption at 1650 cm^-1 but cyclohexane will not) and C (Both cyclohexane and 1-hexene will show C-H absorptions at about 2950 cm^-1) are both true.
• E) Statements A (The two compounds can be differentiated by their mass spectra because they will have molecular ions at different masses), B (1-Hexene will show an absorption at 1650 cm^-1 but cyclohexane will not), and (Both cyclohexane and 1- hexene will show C-H absorptions at about 2950 cm^-1) are all true.

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Definitions:

Precision Measurement

The process of measuring objects with high accuracy and resolution to ensure they meet specified dimensions or standards.

Micrometers

Precision measuring instruments capable of taking very small measurements, often used in mechanical engineering and machining to ensure accuracy to the thousandth of a millimeter.

Dial Calipers

Precision measuring tools that use a calibrated dial to measure the distance between two opposite sides of an object, often used in mechanical engineering and metalworking.

Flat Rate

A pricing structure where a service or product is offered at a consistent price, regardless of different variables that might affect cost.