Question

What is the major organic product obtained from the following reaction? o tom O & & a OMI OIV II OT Question 6 Which of the following substituents is an ortho, para director? CN NHCOR COOH CHO

Answer 1

5.Ans :- Option (c) " Structure (II) " is the correct answer.

Explanation :-

a home + HCl Mechanism:+ Step-I: Formation of Electrophile:? L a + AlCl3 - Aicly Hydridect) - shifting Primary Carbocation (Unstable) Termay caibocation (stable) Step-I! Attack of Electrophile' Step-w- Removal of -> Resonance structores Hybrid Stoucher - HO AKCIE + HO AlCl3 + HCl

Hence, Option (c) is the correct answer.

6.Ans :- Option (b) " NHCOR " is the correct answer.

Explanation :-

If the group or very first atom attached with benzene ring contains at least one lone pairs of electrons then it will increase the electros density on benzene ring at ortho/para position due to its +R (resonance) effect and thus it will act as ortho/para directing group. Since, only nitrogen atom in :NHCOR option (b) contains one lone pair therefore it will be ortho/para directing groups while others are meta directing.

Hence, Option (b) is the correct answer.