Zadania z chemii IB HL

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(a) Outline two features of this experiment that ensure that the propanal intermediate is not a major product.

wzorowane7 pktotwarteśrednie (szac.)

The compound X shown below occurs naturally in cocoa and coffee and is used as a flavouring agent. (i) State the name of the functional group found in compound X. (ii) Deduce the IUPAC name of X. (iii) Deduce how many signals the $\ce{^1H}$ NMR spectrum of X…

Which alcohol and which conditions would give the highest yield of 3-methylbutanoic acid on oxidation with acidified potassium dichromate(VI)? A. 3-methylbutan-2-ol, reflux B. 3-methylbutan-1-ol, distillation C. 3-methylbutan-1-ol, reflux D.…

Which change represents oxidation of the functional group? A. $\ce{CH3COCH3 -> CH3CH(OH)CH3}$ B. $\ce{CH3CH(OH)CH3 -> CH3COCH3}$ C. $\ce{CH3CH2COOH -> CH3CH2CHO}$ D. $\ce{CH3CH=CH2 -> CH3CH2CH3}$

A compound used to make polymers, hexanedioic acid, can be produced by a series of reactions starting from cyclohexane. (i) Deduce how reactant A is related to hex-1-ene. (ii) For the C=O functional group present in intermediate C, state its structural…

Which compounds are oxidized when heated with acidified potassium dichromate(VI) solution? I. $\ce{CH3CH2C(CH3)2OH}$ II. $\ce{(CH3)2CHCH2OH}$ III. $\ce{CH3CH(OH)CH3}$ A. I and II only B. I and III only C. II and III only D. I, II and III