Chapter 14, Problem AM

To determine

To pick the keyword from given list: That fits for compounds having same molecular formula but different structural formulas.

Answer to Problem AM

Constitutional isomers are the compounds which have same molecular fromula but different structural formulas.

Explanation of Solution

Hydrocarbons which have same molecular formula but have different structural, chemical and physical properties are known as isomers.

The hydrocarbons which have different structural formulas but their molecular formula is same then these compounds are known as structural isomers. They have same molecular mass but their chemical properties are different. Constitutional isomers are drawn by altering the structural formula of a hydrocarbon.

For example, two constituional isomers of a hydrocarbon ${\text{C}}_{\text{3}}{\text{H}}_{\text{7}}\text{F}$ are drawn as,

Conclusion:

Therefore, the word constitutional isomers can be picked from the given list.