Question

-R effect examples ​

Answer 1

Answer: Resonance effect in a compound is created due to the presence electron withdrawing or electron releasing groups. There are two types of resonance effects such as +R and R. +R effect: The +R effect or positive resonance effect is expressed by the electron donating groups (for eg. NH2, -OH, -OR etc) which release electrons or donate electrons to the rest of the molecule by delocalization of electrons within the molecule. This results into increase in the electron density on the rest of the molecule. - Reffect: The -R effect or negative resonance effect is expressed by the electron withdrawing groups (for eg. NO2, -COOH etc) which withdrwas electrons from the rest of the molecule by delocalization of electrons within the molecule. It results into decrease in the electron density on the rest of the molecule

Explanation: please mark me as brainlist .