question_answer 64)

  Which of the following reagents can be used to  oxidise primary alcohols to aldehydes ? (a) in anhydrous medium- (b)in acidic medium (c) Pyridinium chlorochromate (d) Heat in the presence of Cu at 573 K.

Answer:

  (a, c, d) will oxidise initially formed aldehydes to carboxylic acids. Therefore, option (b) is wrong while all other options, i.e., (a), (c) and (d) are correct.