Isomerism Test

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Isomerism Test - 2

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Weekly Quiz Competition

Question 1
4 / -1

The isomers which can be converted into another forms?

by rotation of the molecules around single bond are

A
Geometrical isomers

B
. Conformers

C
Enantiomers

D
Diastereomers

Solution

Conformers– Conformation arises because of free rotation around C–C bond axis.
Question 2
4 / -1

C₆ H₅ C ≡ N and C₆ H₅ N ≡ Cexhibit which type of isomerism:

A
Position

B
Functional

C
Dextro isomerism

D
Metamerism

Solution

are functional isomers.
Question 3
4 / -1

Cyanide and isocyanide are isomers of type:

A
Positional

B
Functional

C
Tautomer

D
Structural

Solution

are functional isomers
Question 4
4 / -1

Glucose and fructose are:

A
Optical isomers

B
Functional isomers

C
Position isomers

D
Chain isomers

Solution

Glucose and fructose have similar molecular formula with difference of functional group, so they are functional isomers.
Question 5
4 / -1

Minimum resistance in bond rotation will be observed in the compound:

A
Hexachloroethane

B
Ethylene

C
Acetylene

D
Ethane

Solution

Ethane has all single (σ) bonds so there is minimum resistance in bond rotation.
Question 6
4 / -1

Least hindered rotation about carbon-carbon bond is observed in:

A
Ethane

B
Ethylene

C
Ethyne

D
Hexachloroethane

Solution

Due to single bond there is no hindrance
Question 7
4 / -1

Which of the following statements is not true about enantiomers?

A
They have same physical properties

B
They have different biological properties

C
They have same chemical properties towards chiral compounds

D
None of these

Solution

Enantiomers have same chemical properties but different physical properties.
Question 8
4 / -1

Hydrogenation of the adjoining compound in the presence of poisoned palladium catalyst gives

A
An optically active compound

B
An optically inactive compound

C
A racemic mixture

D
A diastereomeric mixture

Solution

Due to formation of the plane of symmetry by the syn addition of hydrogen in the triple bond, the compound formed is optically inactive.
Question 9
4 / -1

Racemic mixture is formed by mixing two:

A
Isomeric compounds

B
Chiral compounds

C
Meso compounds

D
Optical isomers

Solution

Racemic mixture is combination of d and l isomers.
Question 10
4 / -1

Methyl acetate and propionic acid are:

A
Functional isomer

B
Structural isomer

C
Stereoisomer

D
Geometrical isomer

Solution

Functional isomerism

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Isomerism Test - 2

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Isomerism Test - 2

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Question 1

Geometrical isomers

. Conformers

Enantiomers

Diastereomers

Solution

Question 2

Position

Functional

Dextro isomerism

Metamerism

Solution

Question 3

Positional

Functional

Tautomer

Structural

Solution

Question 4

Optical isomers

Functional isomers

Position isomers

Chain isomers

Solution

Question 5

Hexachloroethane

Ethylene

Acetylene

Ethane

Solution

Question 6

Ethane

Ethylene

Ethyne

Hexachloroethane

Solution

Question 7

They have same physical properties

They have different biological properties

They have same chemical properties towards chiral compounds

None of these

Solution

Question 8

An optically active compound

An optically inactive compound

A racemic mixture

A diastereomeric mixture

Solution

Question 9

Isomeric compounds

Chiral compounds

Meso compounds

Optical isomers

Solution

Question 10

Functional isomer

Structural isomer

Stereoisomer

Geometrical isomer

Solution

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