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why can’t we write the structure of 1-chloro-2-methyl benzene as 2-chloro-1-methyl benzene?

imdad , 5 Years ago
Grade 12
anser 3 Answers
Ayush_Deep

Last Activity: 5 Years ago

The numbers allotted to the substituent are based on alphabetical order . since , C comes first so we allot first position to chlorine
Vikas TU

Last Activity: 5 Years ago

Dear student 
We can write it as 
Toluene, o-chloro-; o-Chlorotoluene; o-Tolyl chloride; 1-Methyl-2-chlorobenzene; 2-Chloro-1-methylbenzene; 2-Chlorotoluene; 1-Chloro-2-methylbenzene; ortho-Chlorotoluene; Halso 99; 2-Methylchlorobenzene; NSC 8766
Yashraj

Last Activity: 5 Years ago

if two substituent are connected to benzene then we follow alphabetical order so c comes first hence cl is alloted number 1
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