Results are out! Find what you need...fast. Get quick advice or join the chat
Hey! Sign in to get help with your study questionsNew here? Join for free to post

Hi I am new to The Student Room.

Announcements Posted on
Applying to Uni? Let Universities come to you. Click here to get your perfect place 20-10-2014
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    Hey,

    I have a question for some revision I am doing.

    The question comes from a Biology ISA:

    "Why does methylene blue decolourise?"

    I just can't seem to get this question right.

    Does anyone know what the correct answer to this is?

    Thanks
    • 32 followers
    Online

    ReputationRep:
    (Original post by Crusoe1)
    Hey,

    I have a question for some revision I am doing.

    The question comes from a Biology ISA:

    "Why does methylene blue decolourise?"

    I just can't seem to get this question right.

    Does anyone know what the correct answer to this is?

    Thanks
    Hi, welcome to TSR!

    As far as I know, the decolourisation is to do with a redox process - when methylene blue is reduced by a reducing agent, it becomes colourless, and when it is oxidised by an oxidising agent, it becomes blue again.

    Wiki's always good to have a quick check: http://en.wikipedia.org/wiki/Methylene_blue#Uses
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    Thank you! I looked it up and I kinda figured it out...Thanks again!

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: May 5, 2012
New on TSR

Submitting your UCAS application

How long did it take for yours to be processed?

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.