Which pair shares the same empirical formula? plz ! a. c2h4 & c6h6 b. c6h6 & c3h3 c. ch2 & c6h6 d. ch & c2h4

The pair which shares the same empirical formula is C6H6 & C3H3.

The empirical formula shows the ratio of atoms of each element in a compound while the molecular formula shows the number of atoms of each element in a molecule.

Hence, if we look at each of the options, we have to decode the option in which the pair represented has the same ratio of atoms of hydrogen and carbon. This pair is C6H6 & C3H3. The carbon and hydrogen atom ratio in each molecule is 1:1 therefore the both of them must have the same empirical formula.

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B) and

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 is and is .

2. The empirical formula for is and is .

3. The empirical formula for is and is .

4. The empirical formula for is and is .

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explanation:

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vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.