Edexcel A-level Chemistry Paper 2: 9CH0 02 - 11 Jun 2019 [Exam Discussion]

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Alice_1809
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Hi, i just want to see if any of you know,
do we have to know the equations for the test for aldehydes and ketones etc?
I know the results of the tests but my teachers havent made it clear as to whether we must know the actual equations...
Thank you
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Evil Homer
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(Original post by Alice_1809)
Hi, i just want to see if any of you know,
do we have to know the equations for the test for aldehydes and ketones etc?
I know the results of the tests but my teachers havent made it clear as to whether we must know the actual equations...
Thank you
I've made this thread the main place to discuss the next Chemistry Paper

Good luck in your exams tomorrow
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Jas9531
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The specification says


"Fehling’s or Benedict’s solution, Tollens’ reagent and acidified dichromate(VI) ions In equations, the oxidising agent can be represented as [O]"

and

"2,4-dinitrophenylhydrazine (2,4-DNPH), as a qualitative test for the presence of a carbonyl group and to identify a carbonyl compound given data for the melting temperatures of derivatives The equation for this reaction is not required"

so i guess its good to know the equations for Fehling's/Benedict's/Tollens'
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Alice_1809
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Perfect!
Thank you very much and good luck!
(Original post by Jas9531)
The specification says


"Fehling’s or Benedict’s solution, Tollens’ reagent and acidified dichromate(VI) ions In equations, the oxidising agent can be represented as [O]"

and

"2,4-dinitrophenylhydrazine (2,4-DNPH), as a qualitative test for the presence of a carbonyl group and to identify a carbonyl compound given data for the melting temperatures of derivatives The equation for this reaction is not required"

so i guess its good to know the equations for Fehling's/Benedict's/Tollens'
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mathsOX
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what questions/topics du guys think will be on tomorrows test?
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hxrrisonjames
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Any predictions for tomorrow? What could the bigger mark questions be on?
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