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Need Urgent help on this chemistry question from AQA CHEM 4

I am stuck on question 6c, i'm not sure why the molecular ion formed is the carbocation and not the acylium ion.

http://filestore.aqa.org.uk/subjects/AQA-CHEM4-W-MS-JUN14.PDF

http://filestore.aqa.org.uk/subjects/AQA-CHEM4-QP-JUN14.PDF
Original post by Hadigy
I am stuck on question 6c, i'm not sure why the molecular ion formed is the carbocation and not the acylium ion.

http://filestore.aqa.org.uk/subjects/AQA-CHEM4-W-MS-JUN14.PDF

http://filestore.aqa.org.uk/subjects/AQA-CHEM4-QP-JUN14.PDF


The ion formed is the acylium ion? Since it has a MR 44. The plus sign indicates an ion whereas dot is the radical.
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Hatiki99
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No the mark scheme says that the ion formed is the carbocation, but i am confused as to the reasoning behind it.
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Hatiki99
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Original post by hilbertchappell
The ion formed is the acylium ion? Since it has a MR 44. The plus sign indicates an ion whereas dot is the radical.


Is it because the carbocation is more stable since there are 2 oxygen atoms on the acylium

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