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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2013
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Q)

Some meta - directing substitution in aromatic substitution are given. Which one is most deactivating ?


( A ) $ –NO_2$
( B ) $–COOH $
( C ) $ –C≡N $
( D ) $–SO_3H $

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