How Many Constitutional Isomers Are Possible for the Molecular Formula

question 34

Multiple Choice

How many constitutional isomers are possible for the molecular formula C₅H₁₂?

• A)one
• B)three
• C)four
• D)five
• E)six

Understand the concepts of independent and dependent variables and their roles in experiments.

Recognize the advantages and disadvantages of survey research.

Identify alternatives to random assignment in experiments.

Explain how confounding variables affect internal validity in experiments.

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Definitions:

Cilia

Microscopic, hair-like structures on the surface of cells that move rhythmically to transport substances or facilitate movement.

Respiratory System

Organ system of humans that includes the lungs and associated structures; involved in the exchange of gases; helps control pH.

Lung Cancer

Uncontrolled cell growth that affects any component of the respiratory system.

Pneumonectomy

A surgical procedure to remove one lung, often performed to treat lung cancer or severe lung disease.