stu23
Badges: 0
Rep:
?
#1
Report Thread starter 7 years ago
#1
Do you need to know the Sn1 and Sn2 mechanism for the AS Edexcel Chemistry exam?

I checked the spec and it says: "describe the mechanisms of the substitution reactions of halogenoalkanes"

Does this mean it does?
0
reply
QuantumOverlord
Badges: 16
Rep:
?
#2
Report 7 years ago
#2
(Original post by stu23)
Do you need to know the Sn1 and Sn2 mechanism for the AS Edexcel Chemistry exam?

I checked the spec and it says: "describe the mechanisms of the substitution reactions of halogenoalkanes"

Does this mean it does?
I don't know but it can't hurt to learn them; especially if you want to do chemistry later on itl save you time! Besides they aren't difficult and it might give you a greater understanding of chemistry.

Think about how SN1 and SN2 mechanisms relate to carbocation stability. Clearly a primary haloalkane would never undergo SN1 because you would end up with a primary carbocation intermediate which is really unstable.
0
reply
stu23
Badges: 0
Rep:
?
#3
Report Thread starter 7 years ago
#3
(Original post by QuantumOverlord)
I don't know but it can't hurt to learn them; especially if you want to do chemistry later on itl save you time! Besides they aren't difficult and it might give you a greater understanding of chemistry.

Think about how SN1 and SN2 mechanisms relate to carbocation stability. Clearly a primary haloalkane would never undergo SN1 because you would end up with a primary carbocation intermediate which is really unstable.

Thank you for your helpful advice!
0
reply
Just ZK
Badges: 0
Rep:
?
#4
Report 7 years ago
#4
(Original post by stu23)
Do you need to know the Sn1 and Sn2 mechanism for the AS Edexcel Chemistry exam?

I checked the spec and it says: "describe the mechanisms of the substitution reactions of halogenoalkanes"

Does this mean it does?
Yup it does mean u have to learn the mechanisms! If it is edexcel then its for sure those mechanisms will come!
0
reply
illusionz
Badges: 20
Rep:
?
#5
Report 7 years ago
#5
(Original post by QuantumOverlord)
I don't know but it can't hurt to learn them; especially if you want to do chemistry later on itl save you time! Besides they aren't difficult and it might give you a greater understanding of chemistry.

Think about how SN1 and SN2 mechanisms relate to carbocation stability. Clearly a primary haloalkane would never undergo SN1 because you would end up with a primary carbocation intermediate which is really unstable.
Learn them for this reason only. If you understand mechanisms then you can work them out in an exam rather than having to try and remember it.
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Do you think receiving Teacher Assessed Grades will impact your future?

I'm worried it will negatively impact me getting into university/college (165)
43.88%
I'm worried that I’m not academically prepared for the next stage in my educational journey (42)
11.17%
I'm worried it will impact my future career (31)
8.24%
I'm worried that my grades will be seen as ‘lesser’ because I didn’t take exams (80)
21.28%
I don’t think that receiving these grades will impact my future (36)
9.57%
I think that receiving these grades will affect me in another way (let us know in the discussion!) (22)
5.85%

Watched Threads

View All