Turn on thread page Beta
    • Thread Starter
    Offline

    16
    ReputationRep:
    https://b26cc0cff3cb5180558ef6ab4ced...%20Biology.pdf

    For 6c) in this paper, I put because the most hydrogen and oxygen are produced in the liver, indicated by the greatest height of bubbles. However, the mark scheme mentions nothing about hydrogen and oxygen but aren't water and oxygen formed when hydrogen peroxide is broken down? Thanks.
    Offline

    20
    ReputationRep:
    Why do you think hydrogen is produced when the question says hydrogen peroxide is broken down into water and oxygen? This is an example of how important it is to read the question properly and understand it before attempting the question.

    Hydrogen peroxide is not broken down into hydrogen.
    • Thread Starter
    Offline

    16
    ReputationRep:
    (Original post by Maker)
    Why do you think hydrogen is produced when the question says hydrogen peroxide is broken down into water and oxygen? This is an example of how important it is to read the question properly and understand it before attempting the question.

    Hydrogen peroxide is not broken down into hydrogen.
    sorry I mean water and oxygen! But water and oxygen aren't mentioned in the mark scheme. Thanks.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 4, 2016
The home of Results and Clearing

2,744

people online now

1,567,000

students helped last year

University open days

  1. London Metropolitan University
    Undergraduate Open Day Undergraduate
    Sat, 18 Aug '18
  2. Edge Hill University
    All Faculties Undergraduate
    Sat, 18 Aug '18
  3. Bournemouth University
    Clearing Open Day Undergraduate
    Sat, 18 Aug '18
Poll
A-level students - how do you feel about your results?

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.