- Messages
- 603
- Reaction score
- 1,102
- Points
- 153
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w03_qp_1.pdf
Need help on Q3, 2o, 27 ( isnt the tertiary alcohol will be resistant to oxidation? ) and 40 ( why 2 cant be seen after distillation? )
Hi, please include the answers to make it easier for us to reply.
w03qp1
Q3. C6H12 + 9O2 --> 6CO2 + 6H2O
moles of H2O : moles of CO2
6:6
mass of H2O absorbed : mass of CO2 absorbed
6 x 18: 6 x 44
0.41:1
Q27. Butanol has the following structural isomers
2-Butanol has a chiral carbon, so it has two optical isomers. Total 5 isomers
Q27. Both are primary alcohols, both can be oxidised.
The first one is resistant to dehydration but not the second one.
Q40. Substance 2 is a ionic compound (high boiling point) , it would be found left in the distilling flask and not the distillate.