Free Radicals? Watch

sayumaya
Badges: 1
Rep:
?
#1
Report Thread starter 4 years ago
#1
Stuck on a few questions =(

1) C5H12 reacts with bromine as shown below.

C5H12 + Br2 ----> C5H11 + HBr

The reaction is initiated by the formation of bromine free radicals.

iv) Write equations to show the two propagation steps that lead to the formation of C5H11Br

diii) The fission of Cl2 leads to a chain reaction involving two propagation steps. Complete the equations for the two propagation steps.

C5H10 + _______ -----> C5H9 + ________

C5H9 + ___________ ------> ______ + _______
1
reply
username1445490
Badges: 9
Rep:
?
#2
Report 4 years ago
#2
The first step - not shown if form the radicals
Br2 --> 2Br.

The Br. radical will attack a C5H12 molecule and remove a H forming HBr
this leaves a C5H11. radical.
The C5H11. radical will attack a Br2 molecule and form the C5H11Br and a Br. radical.

You equations seem to contain an error in that the questions says C5H12 as the reactant and C5H11Br as the product but the equations have C5H10 and C5H9 radical.
1
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
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

University open days

  • Cranfield University
    Cranfield Forensic MSc Programme Open Day Postgraduate
    Thu, 25 Apr '19
  • University of the Arts London
    Open day: MA Footwear and MA Fashion Artefact Postgraduate
    Thu, 25 Apr '19
  • Cardiff Metropolitan University
    Undergraduate Open Day - Llandaff Campus Undergraduate
    Sat, 27 Apr '19

Have you registered to vote?

Yes! (368)
37.28%
No - but I will (74)
7.5%
No - I don't want to (69)
6.99%
No - I can't vote (<18, not in UK, etc) (476)
48.23%

Watched Threads

View All