Sn Ar Flashcards
1
Q
In electrophilic aromatic substitution
A
First electrophilic aatach with Lewis acid
Electrophile attach with benzene
Benzene remove h+ where electrophile attach itself
2
Q
Leaving group of how many types
A
3
Negative = cl- ,Br-, l-
Natural gas = co2, so2, n2
Neutral solvent = h2o, roh
Positive = si+me3,h+
3
Q
Rate determining step
A
When electrophilic added to benzene ring and carbocation is formed
4
Q
Rate of substitution faster in benzene ring have hydrogen,deuterium, tritium
A
Equal
In case of sulphonation and iodination these are not equal
5
Q
N2O5 BREAKS IN TO
A
NO3- , NO2+
6
Q
HNO3 + H2SO4 GIVE NO2 +
HNO3 ACT AS A
A
Base
7
Q
BF4NO2 and conc. HNO3 GIVE
A
NO2+
8
Q
Cl2 kya paida karta hai
A
Cl + electrophile
9
Q
Br–f/ AlCl3=
Cl–I/ AlCl3
A
Br+
I+
