WorksheetsIsomerism
Total questions: 20
Worksheet time: 11mins
Isomerism that arises out of the difference in spatial arrangement of atoms or groups about the doubly bonded carbon atoms are called?
Structural Isomerism
Stereoisomerism
Geometrical Isomerism
Optical Isomerism
How to determine that a molecule exhibit cis-trans isomerism?
Restricted rotation in a carbon-carbon single bond of alkenes
Each carbon of a site of restricted rotation has 2 different atoms or groups attached to it
Exist in cyclic compouds only
Similar chemical properties
Two optical isomers have the same
Empirical formula
Structural formula
Molecular formula
Butan-1-ol and Butan-2-ol exhibit (a) isomerism
Isomerism exhibited by acetic acid and methyl formate is
position
chain
functional
metamerism
Which of the following compound(s) exhibit(s) cis-trans isomerism?
(1) 1,2-dibromo-1,2-dichloroethene
(2) 3,3-dibromo-2-chloropropene
(3) 1,2-dichloropropene
(1) only
(2) only
(1) and (3) only
(2) and (3) only
Which of the following compounds exhibits stereoisomerism?
Butanal
Propenoic acid
1-bromohexane
3,4-dichloropent-1-ene
Which of the following compounds is the enantiomer of the above compound?
All of them.
Chlorination of alkanes is an example of
Elimination reaction
Free radical substitution reaction
Nucleophilic substitution reaction
Electrophilic addition reaction
Choose the incorrect option regarding isomerism:
They differ in both physical and chemical properties
They have different molecular formula
There are two types of isomerism : Structural and Stereoisomerism
Geometric and optical isomerism are two types of stereoisomerism
What is a functional group?
Atoms or group of atoms that give specific characteristics to a molecule
Group of molecules that make up a group of atoms
Group of molecules that give specific characteristics to an atom
Group of atoms that give specific characteristics to an element
Classify the compound based on the functional group present.
Ketone
Carboxylic acid
Ester
Ether
A molecule that contains C=C must exist cis-trans isomerism
FALSE
TRUE
the molecule contains cis-trans isomerism because the C=C double bond is restricted to rotation
TRUE
FALSE
Fill in the blanks to Define chiral centre:
A ______ atom bonded with _______ different groups
carbon , four
hydrogen, two
oxygen , four
oxygen, two
Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.
isomers
isotopes
polymers
alkanes
In a stereoisomer, ________ means "on the same side" and ______ means "across from."
cis; trans
cis; L
D; L
trans; cis
The two Geometric isomers shown are called:
Cis/trans 1,2 dichloroethane
Cis/trans 1,2 dichloroethene
Cis/trans 1,2 chloroethane
Cis/trans 1,2 chloroethene
A structural isomer of pentane is?
2-methyl butane
2,2-dimethyl octane
1-methyl propane
1-methyl pentane
Explain why hexane exhibits cis-trans isomerism
There is restriction in the rotation of carbon-carbon double bond.
Have same atom or group in the same side.
No mirror image
There is restriction in the rotation of carbon-carbon single bond in cyclic structure.
