JEE Main201910 Apr 2019Morning ShiftChemistryHydrocarbonsActual
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is:
Options
- AI I < I < I I I
- BI I I < I I < I
- CI I I < I < I I
- DI < I I I < I I
Correct answer
C. I I I < I < I I
Step-by-step solution
Rate of E + substitution reaction ∝ - v e charge density on benzene ring Electron releasing group; increasing the rate of E S R ; halogen has - I > + M so deactivating group & but show + M but show - M > - I so less deactivating group only Reactivity order is: