Welcome to the Quiz!
This quiz contains 17 questions from a mix of 1 subtopics.
Which of the following best describes isomers?
molecules with the same molecular formula but different arrangements of atoms
molecules with the same molecular formula and the same arrangement of atoms
molecules with different molecular formulas but the same arrangement of atoms
molecules with different molecular formulas and different arrangements of atoms
|
Which type of structural isomer differs in the carbon skeleton arrangement?
chain isomers
positional isomers
stereoisomers
functional group isomers
|
In which type of structural isomer is the functional group attached at different carbon atoms?
functional group isomers
positional isomers
stereoisomers
chain isomers
|
Which type of structural isomer has atoms forming different functional groups?
stereoisomers
positional isomers
functional group isomers
chain isomers
|
How many chain isomers are possible for butane (C4H10)?
4
1
3
2
|
How many distinct positional isomers are there for chloropentane (C5H11Cl)?
4
3
2
1
|
Which of the following is NOT a functional group isomer of C3H6O?
propanal
propan-1-ol
propanone
|
What are the two sub-types of stereoisomers?
functional group isomers and stereoisomers
cis isomers and trans isomers
chain isomers and positional isomers
geometric isomers and optical isomers
|
In which configuration of cis-trans isomers are the substituent groups positioned on the same side of the carbon-carbon double bond?
cis configuration
both cis and trans configurations
trans configuration
neither cis nor trans configurations
|
What is the term for a carbon atom bonded to four different substituents, creating non-superimposable mirror image forms?
optical centre
geometric centre
chiral centre
stereogenic centre
|
What is the name given to non-superimposable mirror image forms of a molecule?
diastereomers
meso compounds
racemates
enantiomers
|
Which of the following statements about enantiomers is true?
they have different molecular formulas
they have different structural formulas
they have different melting points
they have different interactions with plane-polarised light
|
What type of isomerism occurs in straight-chain alkenes when the carbon-carbon double bond restricts rotation?
positional isomerism
chain isomerism
cis-trans isomerism
functional group isomerism
|
Which of the following molecules has a chiral centre?
ethane
2-chlorobutane
pentane
propane
|
In which configuration of cis-trans isomers are the substituent groups positioned across from one another, on opposite sides of the carbon-carbon double bond?
|
What is the primary reason for the restricted rotation around carbon-carbon double bonds in alkenes?
the stable overlapping of p orbitals forming the π bond
the planar arrangement of atoms connected to the doubly bonded carbons
the free rotation of single bonds in the molecule
the presence of single bonds in the molecule
|
Which of the following best describes stereoisomers?
compounds with the same molecular formula and connectivity of atoms but different spatial arrangements of atoms
compounds with different molecular formulas and different spatial arrangements of atoms
compounds with different molecular formulas but the same spatial arrangement of atoms
compounds with the same molecular formula but different connectivity of atoms
|