Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    3
    ReputationRep:
    Does oxidation of aldehyde produce water as product? Some book said yes, while some book said no... Which one is correct?
    Offline

    3
    ReputationRep:
    It depends on the reaction. The oxidation of an aldehyde gives a carboxylic acid, so RCHO -> RCOOH.

    With potassium dichromate, there is water formed:
    3CH3CHO + Cr2O72- + 8H+ -> 3CH3COOH + 4H2O + 2Cr3+.

    Reacting an aldehyde with Benedict's solution uses water:
    2Cu2+ + RCHO + OH- + H2O -> Cu2​O + RCOOH + 3H+.
    Offline

    17
    ReputationRep:
    If you just use [O] in an equation as the oxidant, there will be no water. Using a real oxidant, there probably will be.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Brexit voters: Do you stand by your vote?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.