Could anyone kindly let me know the short cut ways to predict the isomers of monosubstitued and disubstitued benzene ring in organic chemistry?

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Teklit Gebregiorgis Ambaye

PLEASE REFER TO ACTIVATED AND DEACTIVATED ORGANIC COMPOUND THAT ATTACHED TO THE BENZENE RING

Madhukar Baburao Deshmukh

You have to take LCMS of the mixture . Find out number of isomer , isolate them & confirm the structure by PMR & CMR. spectroscopically of the substituted benzene. Mono substituted benzene has no. isomers.

Khaing Htun

Thank you all very much for your time and kind help. Dr Lemos, thank you very very much for your PDF and it was very useful. :)