OCR Chemistry, Unit 1, Aldehydes and Keytones.

Quick Questions and answers

Although i'm afraid 2 of the anwers are missing :( sorry

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Aldehydes and Ketones
Quick Questions
1) Name me
2) Name me
3) Draw the skeletal formula of 2,6dimethyloctan4one.
4) Draw the skeletal formula of benzenal.
5) Describle the trend in solubility and boiling point of Aldehydes and Ketones.
Solubility ­
Boiling point
6) How do you prepare an Aldehyde?
7) Complete the nucleophillic addition by adding in curly arrows
8) Name the 2 distinguishing tests and 1 identifying test for Aldehydes and
Ketones?
9) What is the bond angle and shape around a C=O?
10) What is a nucleophile?
Aldehydes and Ketones
Quick Questions

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Answers
1) 3,3dimethylbutanal
2) 2,4pentandione
3)
4)
5) As chain length increases, solubility decreases.
The longer the molecule the higher the boiling point.
6) Primary Alcohol + Oxidising Agent Aldehyde + Water
Distil off product before further oxidation.
7)
8) Distinguishing ­ Tollens' reagent and Potassium Dichromate
Identifying ­ 2,4Dinitrophenylhyrazine (2,4DNPH)
9) 120° Trigonal Planar
10) An atom or group of atoms that is attracted to an electron deficient centre or
atom where it donates an electron pair to form a new dative covalent bond.…read more

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