Lesson 6.2.1
6.2.1 Amines Quiz: OCR Chemistry, Unit 5
20 questions
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Lesson 6.2.1, Amines: 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 feature allows an amine to act as a Brønsted-Lowry base?
- Positively charged nitrogen
- Delocalised pi ring
- Nitrogen lone pair
- Carbon lone pair
-
What salt is formed when ethylamine reacts with dilute hydrochloric acid?
- Ethylammonium chloride
- Ethanethylammonium chloride
- Ethyl chloride
- Diethylammonium chloride
-
Which reagent and conditions prepare a primary amine from a haloalkane?
- Excess ethanolic ammonia
- Aqueous ammonia
- Concentrated nitric acid
- Refluxing sodium hydroxide
-
Why is excess ammonia used when preparing a primary amine from a haloalkane?
- Neutralise the acid
- Increase activation energy
- Minimise further substitution
- Prevent alkene formation
-
Which reagents are used to reduce nitrobenzene to phenylamine?
- Nickel, hydrogen gas
- LiAlH4, dry ether
- Zinc, dilute HNO3
- Tin, concentrated HCl
-
What is the molar mass of phenylamine, C6H7N, using approximate atomic masses C = 12, H = 1, N = 14?
- 79 g mol^-1
- 93 g mol^-1
- 91 g mol^-1
- 107 g mol^-1
-
What is the product when a primary haloalkane, 1-bromopropane, reacts with excess ethanolic ammonia?
- Propylamine
- Propene
- Propan-1-ol
- Diethylamine
-
What organic product is formed when ethylamine reacts with bromoethane?
- Ethylammonium bromide
- Diethylamine
- Triethylamine
- Nitroethane
-
What organic product is liberated when an alkylammonium salt reacts with sodium hydroxide?
- Carboxylic acid
- Free amine
- Haloalkane
- Primary alcohol
-
What role does ammonia play in its reaction with a haloalkane?
- Nucleophile
- Electrophile
- Free radical
- Oxidising agent
-
Which compound is a primary amine?
- Triethylamine, (CH3CH2)3N
- N-methylethanamide, CH3CONHCH3
- Propylamine, CH3CH2CH2NH2
- Diethylamine, (CH3CH2)2NH
-
Which reagent is required to liberate a free amine from its ammonium salt?
- Hydrochloric acid
- Water
- Ethanoic acid
- Sodium hydroxide
-
Which species is the organic product of heating ethanolic ammonia with bromoethane and excess ammonia?
- Ethanol, CH3CH2OH
- Ethene, CH2=CH2
- Ethylamine, CH3CH2NH2
- Ethanamide, CH3CONH2
-
What reagent is added after reducing nitrobenzene with acid to release phenylamine?
- Aqueous sodium hydroxide
- Aqueous silver nitrate
- Concentrated sulfuric acid
- Anhydrous calcium chloride
-
What is the name of the secondary amine (CH3)2NH?
- Trimethylamine
- Methylamine
- Ethylmethylamine
- Dimethylamine
-
What is the molar mass of ethylamine, C2H7N, using approximate atomic masses C = 12, H = 1, N = 14?
- 45 g mol^-1
- 59 g mol^-1
- 31 g mol^-1
- 41 g mol^-1
-
What is the name of the salt formed when propylamine reacts with dilute hydrochloric acid?
- Propylamine chloride
- Propylammonium hydroxide
- Propylammonium chloride
- Propyl chloride
-
What reaction type converts nitrobenzene into phenylamine?
- Oxidation
- Electrophilic substitution
- Reduction
- Esterification
-
Which functional group is directly attached to the benzene ring in phenylamine?
- Primary amine group
- Nitrile group
- Nitro group
- Amide group
-
What type of bonding accounts for the high water solubility of amine salts?
- Covalent bonding
- Ionic bonding
- Metallic bonding
- Non-polar bonding
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