Which of the following pairs share the same empirical formula?

CH4 and C2H4

PbCl2 and PbCl4<----- my answer, correct?

NO2 and N2O4

C2H6 and CH4

Respuesta :

No, the empirical formula is the lowest whole number ratio of the molecular formula. Example: C6H12O6 goes to CH2O

In this case, the third option is the correct one. 

Answer: The pair which shares the same empirical formula is [tex]NO_2\text{ and }N_2O_4[/tex].

Explanation: Empirical formula is defined as the chemical formula in which the elements in the compound are present in simplest ratio.

So, from the given pairs, only [tex]NO_2\text{ and }N_2O_4[/tex] shares the same empirical formula which is [tex]NO_2[/tex]