Question

How many groups show $-I$ effect?

Answer 1

Answer: 6

Due to partial displacement of $\sigma -$ electrons towards electronegative atom, partial polarisation occurs in carbon chain, known as inductive effect$.<br/>$-I$groupsareattachedtocarbonchainandpulltheelectronsawayfromalkylchain,andtowardsthemoreelectronegativeatom.<br/>-Cationgroups:$- NH _{3}^{+}$<br/>-Electronegativeatoms:$- OH >- Cl >- N \left( CH _{3}\right.$<br/>-multiplebonds$(=/ \equiv):- SO _{3} H >- CHO$