Lesson 3.3.9.2
3.3.9.2 Acylation Quiz: AQA Chemistry, Unit 3
20 questions
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Lesson 3.3.9.2, Acylation: 20 multiple choice questions for the AQA Chemistry (7405), Unit 3: Organic chemistry, written with Revision Ninja.
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The 20 questions
-
What is the functional group of an acyl chloride?
- -CONH2
- -COOCH3
- -COOH
- -COCl
-
What is the usual by-product when ethanoic anhydride reacts with water?
- Hydrogen chloride
- Ethanol
- Ethanal
- Ethanoic acid
-
What organic product forms when ethanoyl chloride reacts with water?
- Ethanol
- Ethanal
- Ethanamide
- Ethanoic acid
-
What organic product forms when ethanoyl chloride reacts with ethanol?
- Methyl ethanoate
- Ethanoic acid
- Ethyl ethanoate
- Ethanamide
-
What acidic by-product is avoided by using ethanoic anhydride instead of ethanoyl chloride?
- Hydrogen chloride
- Nitric acid
- Ethanoic acid
- Sulfuric acid
-
What organic product forms when ethanoyl chloride reacts with ammonia?
- Ethylamine
- N-methylethanamide
- Ethanamide
- Ethanoic acid
-
What is the name of the product when ethanoyl chloride reacts with phenylamine?
- Ethanoic phenylanhydride
- Phenylethanoic acid
- N-phenylethanamide
- Phenyl ethanoate
-
In the acylation mechanism of ethanoyl chloride, which atom is attacked by the nucleophile?
- Carbonyl oxygen
- Methyl carbon
- Carbonyl carbon
- Chlorine atom
-
In the nucleophilic addition-elimination reaction of an acyl chloride, which species is eliminated?
- Hydroxide ion
- Chloride ion
- Methoxide ion
- Hydride ion
-
Which compound is 2-ethanoyloxybenzoic acid, the active ingredient of aspirin?
- Phenylethanone
- Benzoic acid
- Aspirin
- Salicylic acid
-
Which reagent is used industrially to acylate salicylic acid to make aspirin?
- Methanoic acid
- Ethanoic anhydride
- Ethyl ethanoate
- Ethanal
-
What is the relative molecular mass of aspirin, C9H8O4?
- 164
- 152
- 180
- 192
-
Why is the carbonyl carbon in acyl chlorides extremely reactive towards nucleophiles?
- Non-polar
- Strongly delta positive
- Highly electron rich
- Strongly delta negative
-
Which product forms when ethanoyl chloride reacts with methylamine?
- Ethanamide
- Methyl ethanoate
- Ethanoic acid
- N-methylethanamide
-
What organic by-product is formed alongside ethyl ethanoate when ethanoic anhydride reacts with ethanol?
- Water
- Hydrogen chloride
- Ethanoic acid
- Ethanal
-
What class of compound is formed when an acyl chloride reacts with ammonia?
- Amide
- Primary amine
- Ester
- Ketone
-
How does excess amine act when removing the hydrogen chloride formed during acylation?
- As a catalyst
- As a base
- As an acid
- As an electrophile
-
Which feature makes acyl chlorides more reactive than carboxylic acids towards nucleophiles?
- Non-polar C=O bond
- Lower reaction rate
- More electrophilic carbon
- More nucleophilic carbon
-
Ethanoyl chloride reacts with ethanol. If 0.20 mol of ethanol reacts completely, how many moles of ethyl ethanoate form?
- 0.05 mol
- 0.20 mol
- 0.40 mol
- 0.10 mol
-
How does the presence of significant impurities affect the melting point of a solid?
- Raises and broadens it
- Lowers and broadens it
- Raises and sharpens it
- No effect
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