Chemistry AS Evaluative Practical F323

Right, we've been given an evaluative task on the preperation of a ketone which happens to be propan-2-one. So i'm assuming, as this is a written paper, so what do you think would come up?

Would I just have to explainthe process of making propan-2-one from an alchol.. ie. a secondary alchol such as propan-2-ol .. and you just heat with Pottasium Dichromate, and reflux, and the Pottasium Dichromate is reduced and changes colour from orange to green.

To determine further, whether its an Aldehyde or a Ketone, I could use 2,4 DNP (Bradley's Reagent) and an Orange precipitate would form.. Then to test whether it is an Aldehyde or a Ketone, I could use Tollen's Reagent. With an Aldehyde, this would just oxidise to a Carboxylic Acid and a silver mirror would appear on this side of a test tube; Ketones are not oxidised by this Reagent.

Alternatively, to determine if it is a Ketone, you could prepare a Crystaline Derivative using the Orange precipitate formed from the 2,4 DNP by filtering the impure product, and recrystillising it to produce a pure sample of yellow/orange crystals of the 2,4 DNP derivative. You can then test it's melting point, and compare the result with a database of the melting points of aldehydes and ketones..

What else would I need to know for this test, other than Mole calculations, and how to test for the presence of a Ketone?

how did you find the evaluative task? doi need to know expt errors? help?