Tutorial 7.2: Aromatic Compounds by Mah

FSN G5

2018-06-13 10:03:27 UTC

Q5. D

FSN G5

2018-06-13 10:05:38 UTC

10e

FSN G5

2018-06-13 10:06:08 UTC

FSN G2

2018-06-13 11:08:32 UTC

Q2: B

2018-06-13 11:10:33 UTC

2018-06-13 11:11:14 UTC

FSN group 4

2018-06-13 12:53:41 UTC

4.b

FSN group 4

2018-06-13 12:54:04 UTC

FSN group 4

2018-06-13 13:00:17 UTC

BT Group 3

kellyfoo6 — 2018-06-13 15:16:08 UTC

Q3. D

BT Group 3

kellyfoo6 — 2018-06-13 15:18:58 UTC

7a. 6
7b. For the benzene to undergo substitution reaction, it requires Lewis acid to react with the Br₂. As for cyclohexene, the carbon double bond are broken with addition of Br₂, without any additional compounds.

BT Group 1

2018-06-14 06:14:31 UTC

Q1. A

BT Group 1

2018-06-14 06:14:57 UTC

In order: 2, 1, 3
1 and 3 are more reactive than 2 because they are connected to a nitrogen atom which has lone pair that is electron donating, hence it increases electron density of the respective benzene rings and increases reactivity of aromatic ring towards attack of electrophile.
1 is less reactive than 3 because the nitrogen atom connected to 1 is also linked to a C=O which is highly electronegative, largely pulling the lone pair of electrons on N atom towards itself, causing the lone pair to be less available to benzene ring 1.

BT Group 1

2018-06-14 06:24:17 UTC

Q5. D

BT Group 1

2018-06-14 06:39:32 UTC

10. (a), (e)

BT Group 1

2018-06-14 06:51:08 UTC

BT Group 4

2018-06-14 13:55:40 UTC

Q4. B

BT Group 4

2018-06-14 15:53:36 UTC

BT Group 4

2018-06-14 15:54:10 UTC

Q10d

fsn g1

2018-06-15 06:13:39 UTC

1) A

FSN Group 1

2018-06-17 09:52:00 UTC

Ans: 2<1<3
2 has the slowest reaction because it is connected to a carbon tom which is an EWG which will decrease electron density in the benzene ring and leads to less reactivity towards electrophilic aromatic substitution. On the other hand, 1 & 3 has faster reaction than 2 because it is connected to N atom which is a strongly activated EDG. A strongly activated EDG increases electron density in the benzene ring and also more reactive towards electrophilic aromatic substitutio

FSN Group 1

2018-06-17 10:36:02 UTC

Q10a)

FSN G3

2018-06-18 04:07:19 UTC

Question 10c)

FSN Group 3

2018-06-18 05:08:05 UTC

8a. 6
8b. As the benzene ring is very stable because of delocalised electrons, it will undergo substitution to maintain stability

FSN g3

2018-06-18 05:48:32 UTC

3) D