How can one differentiate between the organic compounds propanal (CH3CH2CHO) and propanone (CH3COCH3)?
React a sample of each compound with Tollens reagent. The aldehyde (propanal) will be oxidised to a carboxylic acid (propanooic acid) and will form a silver mirror. No change will be observed with the ketone or alternatively Heat a sample of each compound with a solution of acidified potassium dichromate, which is orange. Again, the aldehyde will have been oxidised to a carboxylic acid, and the solution will turn green. The ketone solution will stay orange
JT
Related Chemistry A Level answers
All answers ▸State an explain the result of an increase in temperature on the following equilibria: N2 (g) + 02 (g) <-> 2 NO (g) (delta H = +180kJmol-1)
electron arrangement in atoms
Without calculation, predict (giving you reasoning) whether the entropy change for the following reaction will be significantly positive, significantly negative or approximately zero: MgO(s) + CO2 (g) --> MgCO3 (s)
Why is phenylamine a weaker organic base than ethylamine?