Lesson 6.2.4
6.2.4 Carbon–carbon bond formation Quiz: OCR Chemistry, Unit 5
20 questions
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Lesson 6.2.4, Carbon–carbon bond formation: 20 multiple choice questions for the OCR Chemistry (H432), Unit 5: Organic chemistry and analysis, written with Revision Ninja.
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The 20 questions
-
Which species acts as the nucleophile when a haloalkane reacts with ethanolic potassium cyanide?
- Ethanol molecule
- Halide ion
- Potassium ion
- Cyanide ion
-
What is the product of bromoethane reacting with potassium cyanide in ethanol?
- Propanenitrile, CH3CH2CN
- Ethylamine, CH3CH2NH2
- Propan-1-ol, CH3CH2CH2OH
- Ethanenitrile, CH3CN
-
What type of mechanism does the reaction of a haloalkane with CN- follow?
- Free radical substitution
- Nucleophilic substitution
- Electrophilic addition
- Electrophilic substitution
-
Propanenitrile is reduced by H2 over a nickel catalyst. What is the product?
- Propan-2-amine, CH3CH(NH2)CH3
- Propanoic acid, CH3CH2COOH
- Propylamine, CH3CH2CH2NH2
- Propan-1-ol, CH3CH2CH2OH
-
Propanenitrile is hydrolysed by heating with dilute acid. What is the product?
- Propanamide only
- Propanoic acid
- Propan-1-ol
- Propylamine
-
Which reaction attaches an alkyl group to a benzene ring using a haloalkane and catalyst?
- Nitration
- Friedel–Crafts alkylation
- Halogenation
- Friedel–Crafts acylation
-
What is the organic product when chloromethane reacts with benzene in the presence of aluminium chloride?
- Phenylmethanol
- Benzoic acid
- Methylbenzene
- Chlorobenzene only
-
Why must Friedel–Crafts reactions be conducted under anhydrous conditions?
- Water hydrolyses benzene
- Water evaporates rapidly
- Water oxidises haloalkane
- Water deactivates catalyst
-
Which mechanism describes the reaction between a haloalkane and potassium cyanide?
- Electrophilic addition
- Electrophilic substitution
- Nucleophilic substitution
- Nucleophilic addition
-
What is the product of ethanal reacting with HCN followed by acid hydrolysis of the nitrile?
- Ethanoic acid
- 2-hydroxypropanoic acid
- Propanoic acid
- 2-hydroxypropanal
-
What type of organic compound is formed by the reduction of a nitrile with hydrogen gas?
- Carboxylic acid
- Amide
- Secondary amine
- Primary amine
-
A chemist prepares ethanoic acid with two steps: CH3Cl + CN-, then acid hydrolysis. How many carbon atoms are in the final product?
- Three
- Two
- One
- Four
-
Which organic reagent reacts with benzene in the presence of AlCl3 to form an aromatic ketone?
- Alkyl chloride
- Haloalkane
- Carboxylic acid
- Acyl chloride
-
Which ion reacts with a haloalkane to increase its carbon chain length by one carbon?
- Hydroxide ion
- Hydride ion
- Cyanide ion
- Nitrate ion
-
How many carbon atoms are in the nitrile formed when 1-bromobutane reacts with KCN in ethanol?
- Five
- Six
- Four
- Three
-
What is the product of 2-bromopropane reacting with KCN in ethanol?
- 2-methylpropanenitrile, (CH3)2CHCN
- Butanenitrile, CH3CH2CH2CN
- 2-methylpropan-2-ol
- Propan-2-amine
-
What is the molecular formula of propanenitrile?
- C3H6O
- C3H7N
- C2H5N
- C3H5N
-
What is the functional group present in propanenitrile?
- Amine
- Nitrile
- Amide
- Nitro
-
What is the role of aluminium chloride in Friedel–Crafts alkylation of benzene?
- Oxidising agent
- Reducing agent
- Nucleophilic catalyst
- Halogen carrier catalyst
-
What organic product forms when benzene reacts with 2-bromopropane in the presence of AlCl3?
- Propylbenzene
- Bromobenzene
- (1-methylethyl)benzene
- Phenylethanone
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