Question

Which pair shares the same empirical formula?

Answer 1

Answer: A. $C_2H_2$ and $C_6H_6$

Explanation: Empirical formula is the formula which shows the elements of a compound in the simplest ratio of atoms and not the actual number of atoms as shown in molecular formula.

A) $C_2H_2$ and $C_6H_6$ : Empirical formula for  $C_2H_2$ is $CH$ and $C_6H_6$ is $CH$

B) $C_2H_2$ and $C_2H_4$: Empirical formula for  $C_2H_2$ is $CH$ and $C_2H_4$ is $CH_2$

C) $CH_2$ and $C_6H_6$: Empirical formula for  $CH_2$ is $CH_2$ and $C_6H_6$ is $CH$

D) $CH$ and $C_2H_4$: Empirical formula for  $CH$ is $CH$ and $C_2H_4$ is $CH_2$