Question

Which of the following formulas represents an empirical formula?

A. C8H18
B. C4H10
C. C2H5
D.C2H4

Answer 1

C is the only option that represents an empirical formula, as it can't be simplified further.

You can turn C8H18, for example: to C4H9, but you can't do the same with C2H5.

Let me know if this helps!