Question

Which pair shares the same empirical formula?plz help!

Answer 1

B

C6H6 = CH

C3H3 = CH

Hope this helps!

Answer 2

Answer: B) $C_6H_6$ and $C_3H_3$

Explanation: Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

1. The empirical formula for $C_2H_4$ is $CH_2$ and $C_6H_6$ is $CH$.

2. The empirical formula for $C_6H_6$ is $CH$ and $C_3H_3$ is $CH$.

3. The empirical formula for $CH_2$ is $CH_2$ and $C_6H_6$ is $CH$.

4. The empirical formula for $CH$ is $CH$ and $C_2H_4$ is $CH_2$.