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AQA Chemistry C4: Chapter 5: Compounds Containing the Carbonyl Group

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AQA A2
stevbarretto
Quiz by stevbarretto, updated more than 1 year ago
stevbarretto
Created by stevbarretto almost 11 years ago
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Resource summary

Question 1

Question
Aldehydes and Ketones contain which functional group?
Answer
  • -OH
  • Benzene ring
  • C=O

Question 2

Question
Of these compounds with comparable relative molecular mass, which has the higher boiling point?
Answer
  • Alcohols
  • Alkanes
  • Carbonyl compounds

Question 3

Question
Tick which answers are true
Answer
  • Shorter chain aldehydes and ketones mix completely with water
  • Carbonyl compounds become more soluble as chain length increases
  • Carbonyl compounds become less soluble as chain length increases
  • Methanal is gas at room temperature
  • Methanal is liquid at room temperature
  • Short chain aldehydes and ketones are pleasant smelling liquids
  • Short chain aldehydes and ketones are pleasant smelling gases

Question 4

Question
Which reactions commonly occur with carbonyl compounds?
Answer
  • Electrophilic addition
  • Nucleophilic substitution
  • Nucleophilic addition
  • Redox
  • Neutralisation

Question 5

Question
Reactions of Aldehydes and Ketones with Hydrogen Cyanide (:CN-) produce what?
Answer
  • Carboxylic acids
  • Amines
  • Amides
  • N-Substituted Amides
  • Hydroxynitriles
  • Esters
  • Alcohols

Question 6

Question
A nucleophilic reaction produces a racemic mixture when a nucleophile attacks which of these?
Answer
  • A symmetrical Ketone
  • An Aldehyde
  • An unsymmetrical Ketone

Question 7

Question
What does acidified potassium dichromate do to aldehydes?
Answer
  • Oxidise to ester
  • Reduce to ester
  • Oxidise to alcohol
  • Reduce to alcohol
  • Oxidise to carboxylic acid
  • Reduce to carboxylic acid
  • Nothing

Question 8

Question
What does acidified potassium dichromate do to ketones?
Answer
  • Oxidise to ester
  • Reduce to ester
  • Oxidise to carboxylic acid
  • Reduce to carboxylic acid
  • Oxidise to alcohol
  • Reduce to alcohol
  • Nothing

Question 9

Question
Colour of Fehlings solution?
Answer
  • Green
  • Orange
  • Red
  • Brown
  • Pink
  • Blue

Question 10

Question
When an aldehyde is warmed with Fehlings solution a precipitate is formed. What colour?
Answer
  • Red
  • Green
  • Blue
  • Orange
  • Yellow
  • Pink
  • Black

Question 11

Question
When an aldehyde is warmed with Tollens reagent __________ is formed
Answer
  • Metallic silver
  • Red precipitate
  • Blue precipitate

Question 12

Question
Reducing agents (e.g. NaBH4) can reduce aldehydes and ketones to ____________
Answer
  • Carboxylic acids
  • Esters
  • Alcohols
  • Alkanes
  • Alkenes

Question 13

Question
Reducing agent sodium tetrahydridoborate(III) generates which nucleophile?
Answer
  • -F
  • -OH
  • -H
  • -CH3
  • -NH2

Question 14

Question
Benzene ring with carboxylic acid group attached is called..?
Answer
  • Phenylcarboxylic acid
  • Carboxylbenzoic acid
  • Benzenecarboxylic acid

Question 15

Question
Carboxylic acids are completely soluble in water. (Up to C4 only)
Answer
  • True
  • False

Question 16

Question
Carboxylic acids have lower melting points than alkanes of similar relative molecular mass
Answer
  • True
  • False

Question 17

Question
Thiele tube measures ______________ of carboxylic acids
Image:
5571 (image/jpg)
Answer
  • Colour
  • Boiling point
  • Viscocity
  • Electronegativity
  • Amounts
  • Melting Points

Question 18

Question
Glacial ethanoic acid is...?
Answer
  • Cooler
  • Pure ethanoic acid
  • Ethanoic acid from glaciers

Question 19

Question
How to name esters?
Answer
  • Group attached to oxygen comes first followed by R-COO
  • R-COO comes first and the group attached to oxygen comes last

Question 20

Question
Which has pleasant fruity smells?
Answer
  • Long chain esters
  • Short chain esters

Question 21

Question
The H in R-COOH (carbox. acid) can be lost as H+ leaving [R-COO]- what is this ion called
Answer
  • Carboxyl ion
  • Carboxylate ion
  • Carboxilic ion
  • Carboxylic acid ion

Question 22

Question
How to distinguish between carboxylic acids and other organic compounds?
Answer
  • React with water
  • React with sodium hydrogencarbonate
  • React with potassium dichromate

Question 23

Question
Ionic salts formed from carboxylic acids donating protons are called? (e.g. Ethanoic Acid + Sodium Hydroxide -> *Sodium Ethanoate* + Water)
Answer
  • Carboxyls
  • Carboxylates
  • Carboxylic salts
  • Carboxyl salt

Question 24

Question
Esters are formed in which reaction?
Answer
  • Alcohol + Ketone
  • Alcohol + Aldehyde
  • Aldehyde + Ketone
  • Alcohol + Carboxylic Acid
  • Carboxylic Acid + Aldehyde
  • Carboxylic Acid + Ketone
  • Carboxylic Acid + Alkene

Question 25

Question
This reaction (sped up by a strong acid catalyst) forms............?
Answer
  • Non equilibrium mixture
  • An equilibrium mixture

Question 26

Question
_____(1)______ is attacked by water acting as a _______(2)______ in the hydrolysis of esters
Answer
  • R group
  • R' group
  • Carbonyl Oxygen
  • Carbonyl Carbon
  • Strong nucleophile
  • Weak nucleophile
  • Weak electrophile
  • Strong base
  • Weak base
  • Weak acid

Question 27

Question
Equilibrium mixture of the hydrolysis of esters contains which of these..?
Answer
  • Alcohol
  • Ester
  • Base
  • Acid
  • Water
  • CO2

Question 28

Question
Fats and oils can be hydrolysed by boiling with NaOH to produce?
Answer
  • Water
  • CO2
  • Glycerol
  • Sodium Salts

Question 29

Question
Salts formed from hydrolysis of fats and oils using NaOH are used in?
Answer
  • Soaps
  • Paint
  • Sun cream

Question 30

Question
What group is this? (Picture)
Image:
acyl.GIF (image/GIF)
Answer
  • Aryl
  • Methyl
  • Acyl
  • Carbonyl

Question 31

Question
Esters, Acid Chlorides and Acid Anhydrides are examples of?
Answer
  • Acyl derivatives
  • Acid derivatives

Question 32

Question
Acyl chlorides and acid anhydrides are bad acylating agents
Answer
  • True
  • False

Question 33

Question
Acid chlorides are more reactive than acid anhydrides
Answer
  • True
  • False

Question 34

Question
Acyl Chlorides and Acid Anhydrides react with the following nucleophiles but in which order of reactivity?
Answer
  • Primary Amine>Ammonia>Alcohol>Water
  • Water>Primary Amine>Alcohol>Ammonia
  • Ammonia>Primary Amine>Alcohol>Water

Question 35

Question
In these reactions between Acyl chlorides/Acid anhydrides and nucleophiles what type of reaction takes place?
Answer
  • Addition reaction
  • Elimination reaction
  • Electrophilic reaction
  • Neutralisation reaction
  • Addition-elimination reaction
  • Electrophilic-elimination reaction

Question 36

Question
In addition-elimination reactions: If the nucleophile is ammonia the product is an/a...?
Answer
  • N-substituted amide
  • Amide
  • Ester
  • Carboxylic Acid

Question 37

Question
In addition-elimination reactions: If the nucleophile is a primary amine the product is an/a...?
Answer
  • N-substiuted amide
  • Amide
  • Ester
  • Carboxylic Acid

Question 38

Question
In addition-elimination reactions: If the nucleophile is the -OH group of an alcohol the product is an/a...?
Answer
  • N-Substituted amide
  • Amide
  • Carboxylic acid
  • Ester

Question 39

Question
In addition-elimination reactions: If the nucleophile is water the product is an/a...?
Answer
  • N-substituted amide
  • Amide
  • Carboxylic Acid
  • Ester

Question 40

Question
Ethanoic anhydride as an acylating agent is cheaper than ethanoyl chloride.
Answer
  • True
  • False

Question 41

Question
Ethanoic anhydride as an acylating agent is more corrosive than ethanoyl chloride.
Answer
  • True
  • False

Question 42

Question
Ethanoic anhydride as an acylating agent reacts less readily with water than ethanoyl chloride.
Answer
  • True
  • False

Question 43

Question
Ethanoic anhydride as an acylating agent is safer than ethanoyl chloride due their by-products
Answer
  • True
  • False
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