Question

The term isomerism applies to organic compounds with the same __.

• A. molecular formula but different structural formula.
• B. molecular formula but different empirical formula.
• C. empirical formula but different molecular formula.
• D. structural formulae but different molecular formula.

Answer 1

The correct option is A

molecular formula but different structural formula.

Carbon compounds exhibit isomerism, the phenomenon in which two or more compounds have same molecular formula but different structural formula with difference in properties. i.e the formula $C_2{H}_{6}O$ represents two different compounds namely ethyl alcohol $\left(C_2{H}_{5}OH\right)$ and dimethyl ether $\left(C{H}_{3}OC{H}_3\right).$