Understanding Bisubstituted Molecules in Chemistry

In chemistry, a substituent is an atom or group of atoms that replaces a hydrogen atom on a parent molecule. A bisubstituted molecule is one in which two hydrogen atoms have been replaced by substituents.

For example, consider the molecule CH3CH2OH (methanol). If we replace one hydrogen atom with a methyl group (-CH3) and the other hydrogen atom with an ethyl group (-C2H5), we get a bisubstituted molecule:

CH3CH2OH + CH3 + C2H5 → CH3CH2CH3 + C2H5OH

In this case, the methyl group and the ethyl group are both substituents on the parent molecule. The resulting molecule, CH3CH2CH3 + C2H5OH, is a bisubstituted molecule because it has two substituents attached to the parent molecule.

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