Quiz
AQA Chemistry C4: Chapter 5: Compounds Containing the Carbonyl Group
Questions in this quiz (43)
1Aldehydes and Ketones contain which functional group?
- A-OH
- BBenzene ring
- CC=O
2Of these compounds with comparable relative molecular mass, which has the higher boiling point?
- AAlcohols
- BAlkanes
- CCarbonyl compounds
3Tick which answers are true
- AShorter chain aldehydes and ketones mix completely with water
- BCarbonyl compounds become more soluble as chain length increases
- CCarbonyl compounds become less soluble as chain length increases
- DMethanal is gas at room temperature
- EMethanal is liquid at room temperature
- FShort chain aldehydes and ketones are pleasant smelling liquids
- GShort chain aldehydes and ketones are pleasant smelling gases
4Which reactions commonly occur with carbonyl compounds?
- AElectrophilic addition
- BNucleophilic substitution
- CNucleophilic addition
- DRedox
- ENeutralisation
5Reactions of Aldehydes and Ketones with Hydrogen Cyanide (:CN-) produce what?
- ACarboxylic acids
- BAmines
- CAmides
- DN-Substituted Amides
- EHydroxynitriles
- FEsters
- GAlcohols
6A nucleophilic reaction produces a racemic mixture when a nucleophile attacks which of these?
- AA symmetrical Ketone
- BAn Aldehyde
- CAn unsymmetrical Ketone
7What does acidified potassium dichromate do to aldehydes?
- AOxidise to ester
- BReduce to ester
- COxidise to alcohol
- DReduce to alcohol
- EOxidise to carboxylic acid
- FReduce to carboxylic acid
- GNothing
8What does acidified potassium dichromate do to ketones?
- AOxidise to ester
- BReduce to ester
- COxidise to carboxylic acid
- DReduce to carboxylic acid
- EOxidise to alcohol
- FReduce to alcohol
- GNothing
9Colour of Fehlings solution?
- AGreen
- BOrange
- CRed
- DBrown
- EPink
- FBlue
10When an aldehyde is warmed with Fehlings solution a precipitate is formed. What colour?
- ARed
- BGreen
- CBlue
- DOrange
- EYellow
- FPink
- GBlack
11When an aldehyde is warmed with Tollens reagent __________ is formed
- AMetallic silver
- BRed precipitate
- CBlue precipitate
12Reducing agents (e.g. NaBH4) can reduce aldehydes and ketones to ____________
- ACarboxylic acids
- BEsters
- CAlcohols
- DAlkanes
- EAlkenes
13Reducing agent sodium tetrahydridoborate(III) generates which nucleophile?
- A-F
- B-OH
- C-H
- D-CH3
- E-NH2
14Benzene ring with carboxylic acid group attached is called..?
- APhenylcarboxylic acid
- BCarboxylbenzoic acid
- CBenzenecarboxylic acid
15Carboxylic acids are completely soluble in water. (Up to C4 only)
- ATrue
- BFalse
16Carboxylic acids have lower melting points than alkanes of similar relative molecular mass
- ATrue
- BFalse
17Thiele tube measures ______________ of carboxylic acids
- AColour
- BBoiling point
- CViscocity
- DElectronegativity
- EAmounts
- FMelting Points
18Glacial ethanoic acid is...?
- ACooler
- BPure ethanoic acid
- CEthanoic acid from glaciers
19How to name esters?
- AGroup attached to oxygen comes first followed by R-COO
- BR-COO comes first and the group attached to oxygen comes last
20Which has pleasant fruity smells?
- ALong chain esters
- BShort chain esters
21The H in R-COOH (carbox. acid) can be lost as H+ leaving [R-COO]- what is this ion called
- ACarboxyl ion
- BCarboxylate ion
- CCarboxilic ion
- DCarboxylic acid ion
22How to distinguish between carboxylic acids and other organic compounds?
- AReact with water
- BReact with sodium hydrogencarbonate
- CReact with potassium dichromate
23Ionic salts formed from carboxylic acids donating protons are called? (e.g. Ethanoic Acid + Sodium Hydroxide -> *Sodium Ethanoate* + Water)
- ACarboxyls
- BCarboxylates
- CCarboxylic salts
- DCarboxyl salt
24Esters are formed in which reaction?
- AAlcohol + Ketone
- BAlcohol + Aldehyde
- CAldehyde + Ketone
- DAlcohol + Carboxylic Acid
- ECarboxylic Acid + Aldehyde
- FCarboxylic Acid + Ketone
- GCarboxylic Acid + Alkene
25This reaction (sped up by a strong acid catalyst) forms............?
- ANon equilibrium mixture
- BAn equilibrium mixture
26_____(1)______ is attacked by water acting as a _______(2)______ in the hydrolysis of esters
- AR group
- BR' group
- CCarbonyl Oxygen
- DCarbonyl Carbon
- EStrong nucleophile
- FWeak nucleophile
- GWeak electrophile
- HStrong base
- IWeak base
- JWeak acid
27Equilibrium mixture of the hydrolysis of esters contains which of these..?
- AAlcohol
- BEster
- CBase
- DAcid
- EWater
- FCO2
28Fats and oils can be hydrolysed by boiling with NaOH to produce?
- AWater
- BCO2
- CGlycerol
- DSodium Salts
29Salts formed from hydrolysis of fats and oils using NaOH are used in?
- ASoaps
- BPaint
- CSun cream
30What group is this? (Picture)
- AAryl
- BMethyl
- CAcyl
- DCarbonyl
31Esters, Acid Chlorides and Acid Anhydrides are examples of?
- AAcyl derivatives
- BAcid derivatives
32Acyl chlorides and acid anhydrides are bad acylating agents
- ATrue
- BFalse
33Acid chlorides are more reactive than acid anhydrides
- ATrue
- BFalse
34Acyl Chlorides and Acid Anhydrides react with the following nucleophiles but in which order of reactivity?
- APrimary Amine>Ammonia>Alcohol>Water
- BWater>Primary Amine>Alcohol>Ammonia
- CAmmonia>Primary Amine>Alcohol>Water
35In these reactions between Acyl chlorides/Acid anhydrides and nucleophiles what type of reaction takes place?
- AAddition reaction
- BElimination reaction
- CElectrophilic reaction
- DNeutralisation reaction
- EAddition-elimination reaction
- FElectrophilic-elimination reaction
36In addition-elimination reactions: If the nucleophile is ammonia the product is an/a...?
- AN-substituted amide
- BAmide
- CEster
- DCarboxylic Acid
37In addition-elimination reactions: If the nucleophile is a primary amine the product is an/a...?
- AN-substiuted amide
- BAmide
- CEster
- DCarboxylic Acid
38In addition-elimination reactions: If the nucleophile is the -OH group of an alcohol the product is an/a...?
- AN-Substituted amide
- BAmide
- CCarboxylic acid
- DEster
39In addition-elimination reactions: If the nucleophile is water the product is an/a...?
- AN-substituted amide
- BAmide
- CCarboxylic Acid
- DEster
40Ethanoic anhydride as an acylating agent is cheaper than ethanoyl chloride.
- ATrue
- BFalse
41Ethanoic anhydride as an acylating agent is more corrosive than ethanoyl chloride.
- ATrue
- BFalse
42Ethanoic anhydride as an acylating agent reacts less readily with water than ethanoyl chloride.
- ATrue
- BFalse
43Ethanoic anhydride as an acylating agent is safer than ethanoyl chloride due their by-products
- ATrue
- BFalse
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