Question 1
Which pair of compounds can both be separately hydrolysed in acidic conditions to form propanoic acid?
propyl methanoate and ethanenitrile
propyl methanoate and propanenitrile
methyl propanoate and ethanenitrile
methyl propanoate and propanenitrile
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Question 2
Which set of reagents is not suitable for the step indicated?
step 1: HCN and KCN
step 2: hot ethanolic KOH
step 3: warm aqueous H2SO4
step 4: CH3OH with an acid catalyst
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Question 3
Which reaction may be used to make a carboxylic acid in a single step?
hydrolysis of an ester with hydrochloric acid
hydrolysis of an ester with sodium hydroxide
reaction of steam and phosphoric acid with an alkene
reaction of an acyl chloride with ammonia
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Question 4
Which reagent will give a different observation with compounds P and Q?
HOCH2CH(OH)CHO HOCH2COCH2OH
P Q
Br2(aq)
hot acidified KMnO4
silver nitrate in ammonia solution
warm acidified K2Cr2O7
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Question 5
Cottonseed oil contains large amounts of polyunsaturated carboxylic acids. When this oil is used to make margarine, the C=C double bonds in the unsaturated carboxylic acids are hydrogenated.
What reagents and conditions would be suitable to bring about this hydrogenation reaction?
H2 gas, nickel catalyst, and 400°C
LiAlH4 in dry ether
NaBH4 in aqueous solution
steam, concentrated H2SO4, 300°C, and 60 atm pressure
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Question 6
Energy is released in the human body by the oxidation of glucose in a complex sequence of reactions. Part of this sequence is the Krebs cycle.
One reaction in the Krebs cycle is the conversion of fumaric acid into malic acid.
HO2CCH=CHCO2H ➔ HO2CCH(OH)CH2CO2H
fumaric acid malic acid
Which reagents could achieve this transformation in the laboratory?
acidified KMnO4
Br2(aq) followed by hot NaOH(aq)
H2O with Pt catalyst
steam with H2SO4
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Question 7
Which reaction will give the best yield of 1-chloropropane?
chlorine gas with propene gas in the dark
propan-1-ol with dilute NaCl(aq)
propan-1-ol with PCl5
propene with dilute HCl(aq)
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Question 8
The compound ‘leaf alcohol’ is partly responsible for the smell of new-mown grass.
CH3CH2CH=CHCH2CH2OH
leaf alcohol
What will be formed when ‘leaf alcohol’ is oxidised using an excess of hot, acidified K2Cr2O7(aq)?
CH3CH2CH(OH)CH(OH)CH2COOH
CH3CH2COCOCH2COOH
CH3CH2CH=CHCH2COOH
CH3CH2COOH and HOOCCH2COOH
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Question 9
Which pair of reagents will take part in a redox reaction?
CH3CHCH2 + Br2
CH3CH2CH2OH + concentrated H3PO4
CH3COCH3 + HCN
HCOOC2H5 + dilute H2SO4
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Question 10
Which reaction would not give ethanoic acid?
heating ethanenitrile under reflux with dilute sodium hydroxide
heating ethanenitrile under reflux with dilute sulfuric acid
heating ethanal under reflux with acidified sodium dichromate(VI)
heating ethanol under reflux with acidified sodium dichromate(VI)
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Question 11
Which compound could be formed by a one-step reaction from 1-chloropropane?
CH3CHOHCH3
CH3CHNHCH3
CH3CH2CH2OH
(CH3)2CHNH2
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Question 12
Which substance cannot be made in a single step from C2H4?
C2H5OH
C2H5Br
C2H6
C2H5NH2
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Question 13
Which of these reagent(s) will not react with HOCH2CH2CH2COOH?
NaCN in ethanol
C2H5OH in the presence of an acid catalyst
(CH3CO)2O
concentrated H2SO4
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Question 14
Which one of the following reacts with ethanoic acid and with phenol?
aqueous potassium hydroxide
bromine
calcium carbonate
methanol and an acid catalyst
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Question 15
Which compound does not react with nucleophiles?
CH3CH2CHO
CH3CHCH2
CH3CH2COCH3
CH3CH2CH2Cl
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Question 16
Which reaction involves addition-elimination?
(CH3)2CHBr + KOH ➔ CH3CH=CH2 + KBr + H2O
CH3COCl + C6H5OH ➔ CH3COOC6H5 + HCl
CH3CH=CH2 + Cl2 ➔ CH3CHClCH2Cl
CH3CH2CH2Br + NaOH ➔ CH3CH2CH2OH + NaBr
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