I'm solving A Level Chemistry 9701 Paper 1 M/J 2022/13 in this video.

Hey! There are a few mistakes I would like to clarify. In question 1, at 03:56, I said that the answer is Phosphorus, but circled C instead. The correct answer should be D, Phosphorus.

There's also a mistake in the explanation of Question 28. However, B is still the correct answer.
I mentioned in the video that the alcohol is oxidised to form a ketone, but a tertiary alcohol can't be oxidised. Using potassium dichromate oxidises the primary alcohol on the right to a carboxylic acid. So on each side of the tertiary alcohol, we now have ch2cooh. As a result the central carbon isn’t chiral anymore. Sorry for the mistake!

Also, for Question Number 15, at 36:50, I mentioned that the Mark Scheme answer is D, but I thought C should be the correct answer. However, I misinterpreted the question back then after seeing the words 'to completion' . Basically, according to Diagram 3, in the new Boltzmann Distribution, less molecules have energy greater than or equal to Ea. So, we will end up with a lower increase in volume compared to before as well as a lower rate. Sorry for the mistakes and hopefully I could clarify!

Support me on Patreon and unlock bonus perks!
https://www.patreon.com/CAIEPapersSolved

00:00 Intro
01:42 Q1-10
20:59 Q11-20
41:40 Q21-30
59:38 Q31-40
01:14:57 Outro

QP: https://caiepaperssolved.com/wp-content/uploads/2022/11/9701_s22_qp_13.pdf

MS: https://caiepaperssolved.com/wp-content/uploads/2022/11/9701_s22_ms_13.pdf

Threshold: https://caiepaperssolved.com/wp-content/uploads/2022/11/9701_s22_gt.pdf

Examiner's Report:

Fill this form up for Question Paper Requests!
https://forms.gle/bJC4XoRC7AVT6UZHA

For more content, like the video and subscribe to the channel! Please let me know which papers you want me to solve next.

Follow me:
Website: https://caiepaperssolved.com/
Twitter: https://twitter.com/CAIEPaperSolved
YouTube: https://www.youtube.com/c/CAIEPapersSolved