Yeah I know but the thing is that the ones in the past papers are always a primary alcohol and usually have high boiling points not volatile therefore reflux would be the most suitable

Reply 13

Abdel_97

Naah actually reflux is a "continues distillation" and check this http://en.wikipedia.org/wiki/Oxidation_of_secondary_alcohols_to_ketones

Reply 14

shariqsss

Duude, which qsn are you talking about? the diagram?
In the diagram, you had to distill of the solvent (with a low boiling point) from butanone
since the solvent had a low boiling point, it could easily be distilled!

Reply 15

shariqsss

see dude, you are confused, distillation means separation
continuous or simultaneous distillation is where you place the condenser horizontally

Reflux is where you DONT allow the product to escape, so you place the condenser vertically, and you continuously HEAT it.

Reply 16

shariqsss

Reflux heating is done so that all the reactant is converted into the product
After you have the product, you separarte it by distillation

In the experiment given, they chose another method instead of reflux, the sulfuric acid was added from a burette. But the separation step is still distillation!

Reply 17

Abdel_97

You could be right but anyways it was 4marks, probably a mark for the safety precaution a mark having an electric heater an a mark for water in at the bottom and water out at the top so whatever you choose you would get 2 or 3 marks