1.

Some meta-directing substituents in aromatic substitution are given which one is the most deactivating?A. `SO_(3)H`B. `-COOH`C. `-NO_(2)`D. `-C-=H`

Answer» Correct Answer - C
The correct order of deactivation is
`-NO_(2) gt -C-=N gt -SO_(3)H gt - COOH`


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