Welcome to the Quiz!
This quiz contains 11 questions from a mix of 1 subtopics.
Which of the following is the general formula for primary amines?
R4N+
R2NH
R3N
RNH2
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What type of amine is formed when two hydrogen atoms in ammonia are replaced by alkyl or aryl groups?
primary amine
quaternary ammonium ion
secondary amine
tertiary amine
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Which of the following statements about aromatic amines is true?
they do not possess a lone pair of electrons
they are stronger bases than aliphatic amines
they have a higher electron density on the nitrogen atom compared to aliphatic amines
they contain a nitrogen atom directly bonded to a benzene ring
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Which of the following is responsible for the basic properties of amines?
the lone pair of electrons on the nitrogen atom
the alkyl or aryl groups attached to the nitrogen atom
the positive charge on the nitrogen atom in quaternary ammonium ions
the presence of a benzene ring in aromatic amines
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How does the delocalisation of the lone pair of electrons in aromatic amines affect their basicity?
it has no effect on their basicity
it decreases their basicity compared to aliphatic amines
it increases their basicity compared to aliphatic amines
it makes them more nucleophilic than aliphatic amines
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Which of the following is the correct order of increasing basicity for amines?
ammonia < primary aromatic amines < primary aliphatic amines
primary aromatic amines < ammonia < primary aliphatic amines
primary aliphatic amines < primary aromatic amines < ammonia
primary aliphatic amines < ammonia < primary aromatic amines
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What type of bond is formed when an amine accepts a proton (H+ ion)?
coordinate bond
hydrogen bond
ionic bond
amide bond
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Which of the following is an example a compound containing a quaternary ammonium ion?
(CH3)3NBr
CH3NH2Br
(CH3)4NBr
(CH3)2NHBr
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What makes amines nucleophilic?
the presence of a benzene ring in aromatic amines
the lone pair of electrons on the nitrogen atom
the presence of alkyl or aryl groups
the positive charge on the nitrogen atom
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Aliphatic amines are basic than ammonia (NH3) due to the presence of alkyl groups, which the electron density on the nitrogen atom, thereby making the lone pair of electrons available for proton acceptance.
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Amines are organic compounds derived from by replacing one or more hydrogen atoms with alkyl or aryl groups.
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