15. An inductive effect refers to the movement of electrons through_ A. xbonds B

Question

15. An inductive effect refers to the movement of electrons through_ A. xbonds B. ??rbitals C. ?bonds 16. Meta-directing groups the rate of electrophilic substitution reactions rela- tive to o/p directing groups. A increase B. decrease C have no effect on 17. is deactivating and o/p directing. A.-H B.-C C -OH D. -NO2 18. The carboxylic acid group in benzoicacid directs an incoming electrophile to the position(s). A ortho B. meta C para D. ortho and para 19. The nitro group in nitrobenzene directs an incoming electrophile to the position(s). ?.ortho B. meta C para D. ortho and para 20. The bromo group in bromobenzene directs an incoming electrophile to the position(s). ?.ortho B. meta C para D. ortho and para

Explanation / Answer

15) option A is correct

16) option B is correct

Explanation: meta-directing groups withdraws electron density and decreases electron density on benzene ring and decreases electrophilic substitutio reaction.

17) -Cl is deactivating and o/p directing.

Explanation: -Cl is a mild electron donating group.

18) option B is correct

Explanation: carboxylic acid group on benzene ring withdraws electron density and directs the incoming electrophile to meta position.

19) option B is correct

Explanation: -NO2 is an electron withdrawing group.

20) option D is correct

Explanation: -Br is an electron donating group.

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