Respuesta :
Correct option is (3).
Empirical formula:-Simplest whole number ratio of various atoms present in a compound.
Molecular formula:-The formula that gives the total number of atoms of each element in each molecule of a substance.
So, [tex]C_2H_6[/tex](formula B) is the molecular formula, and [tex]CH_3[/tex] (Formula A)is the empirical formula.
Hence, the correct option is (3).
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