Question

Which molecular formula is also an empirical formula?

• A. PCl$_3$
• B. C$_6$H$_4$
• C. H$_2$O$_2$
• D. C$_6$H$_12$O$_6$

Hint:

The empirical formula is the simplest ratio of the elements in the compound, not the actual molecular composition.

Answer 1

The Correct Option is A

An empirical formula represents the simplest whole-number ratio of elements in a compound. PCl$_3$ is already in its simplest form, making it an empirical formula.