AS OCR B SALTER CHEMISTRY F332 - pre-release booklet 2015 Watch

Tig5er
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Hi everyone!

I'd thought id start a thread about the pre-release booklet where we can look at possible questions etc.

This years is titled 'Catalysis'

You can find it here....

2015 pre release booklet F332

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ezaraf
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made this for everyone (a discussion of likely questionswould be nice:cool:) http://www.ocr.org.uk/Images/206180-...-june-2015.pdf
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mismash
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It won't let me see it without a username and password
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misteltain
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http://www.ocr.org.uk/Images/206180-...-june-2015.pdf

Any questions prepared yet? Sitting this privately so that'll be tons of fun.
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you’ve posted in the right place? Posting in the specific Study Help forum should help get responses.

I'm going to quote in Puddles the Monkey now so she can move your thread to the right place if it's needed. :yy:

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yeyhelloxoxoxo
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(Original post by tig5er)
hi everyone!

I'd thought id start a thread about the pre-release booklet where we can look at possible questions etc.

This years is titled 'catalysis'

you can find it here....

2015 pre release booklet f332



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buzzkid101
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Let's get this thread started again..! I have a question, anyone want to explain to me what the hell a Ziegler Natta catalyst is? The pre-lease doesn't make it very clear in my opinion
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kira1
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(Original post by buzzkid101)
Let's get this thread started again..! I have a question, anyone want to explain to me what the hell a Ziegler Natta catalyst is? The pre-lease doesn't make it very clear in my opinion
I have no clue
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ROYAL-P
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hey guys i found a list of some questions on the advanced notice that might come up. we could assess each question and answer them because were not given the answers https://www.tes.co.uk/teaching-resou...-2015-11043257
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ROYAL-P
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Question 1: what is the difference between heterogeneous and homogeneous catalysts?
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ROYAL-P
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Question 2: what catalyst are commonly used in industry and why?
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ROYAL-P
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Question 3: use figure 1 to explain how the hydrogen ions are acting as a catalyst?
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ROYAL-P
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Question 4: explain what is meant by anti knocking property?
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ROYAL-P
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Question 5: define hydrogenation?
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ROYAL-P
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lets start answering the first 5 questions
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buzzkid101
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(Original post by ROYAL-P)
Question 1: what is the difference between heterogeneous and homogeneous catalysts?
So do we all agree that the heterogeneous catalyst is an a different physical state to the reactants whilst the homogeneous catalyst is in the same physical state to the reactants?
Is that the only difference/what are others?
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ROYAL-P
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(Original post by buzzkid101)
So do we all agree that the heterogeneous catalyst is an a different physical state to the reactants whilst the homogeneous catalyst is in the same physical state to the reactants?
Is that the only difference/what are others?
heterogeneous catalysts are used alot more in industry and tend to be more stable and degrade much slower than homogeneous catalysts.
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ROYAL-P
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examples of homogeneous catalysts are:
-Enzymes
-Ziegler-Natta polymerization
-Hydrogenation
-Transfer hydrogenation
-Hydroformylation
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ROYAL-P
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homogeneous catalyst is usually in gas and liquid state while a heterogeneous catalyst surface tends to be in a solid state
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kelzdestadz
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It's in the Chemical Storylines under the Polymer Revolution section ( the Ziegler Natta Catalyst )
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