Some meta-directing substituents in aromatic substitution are given which one is the most deactivating?A. `-C-=N`B. `-SO_3H`C. `-COOH`D. `-NO_2`

Some meta-directing substituents in aromatic substitution are given wh

1.	Some meta-directing substituents in aromatic substitution are given which one is the most deactivating?A. `-C-=N`B. `-SO_3H`C. `-COOH`D. `-NO_2`
Answer» Correct Answer - D The deactivating tendency of given a groups follows the order `-NO_2 gt -SO_3H gt -C -= N gt - oversetoverset(O)(\|\|)C-OH` Thus, `-NO_2` is the most deactivating group.

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Some meta-directing substituents in aromatic substitution are given which one is the most deactivating?A. `-C-=N`B. `-SO_3H`C. `-COOH`D. `-NO_2`

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