Question

what is R group please explain in your own way,thank you

Answer 1

R group: An abbreviation for any groupin which a carbon or hydrogen atom is attached to the rest of the molecule. Sometimes used more loosely, to include other elements such as halogens, oxygen, or nitrogen.

Answer 2

R groups are simply alkyl groups. When one Hydrogen from terminal is removed alkyl groups are formed.

Examples, Methyl, Ethyl etc