Question

check the box under each molecule in the table below that is an isomer of this molecule: ho oh if there are no isomers, check the none of the above box under the table. none of the above

Explanation:

Step1: Identify the given molecule

The given molecule is 1,3 - propanediol with the structure HO - CH₂ - CH₂ - CH₂ - OH.

Step2: Analyze isomerism concepts

Isomers have the same molecular formula but different structures. The molecular formula of 1,3 - propanediol is C₃H₈O₂.

Step3: Analyze each option

• First option: HO - CH₂ - CH₂ - CH₂ - OH is the same molecule, not an isomer.
• Second option: The structure has two hydroxyl groups on adjacent carbons. Its molecular formula is C₃H₈O₂ and it is a structural isomer.
• Third option: The molecule has two ether - O - groups. Its molecular formula is C₃H₈O₂ and it is a structural isomer.
• Fourth option: The molecule has one ether - O - group and one hydroxyl group. Its molecular formula is C₃H₈O₂ and it is a structural isomer.

Answer:

Check the boxes for the second, third and fourth molecules in the table.