Isomerism MCQs : This section focuses on the "Isomerism" in Organic Chemistry. These Multiple Choice Questions (MCQ) should be practiced to improve the Organic Chemistry skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
___________ is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures.
Explanation: Isomerism is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures.
Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called?
Explanation: Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called isomers.
How many primary types of isomerism there?
Explanation: There are two primary types of isomerism, which can be further categorized into different subtypes. These primary types are Structural Isomerism and Stereoisomerism.
Which isomerism commonly referred to as constitutional isomerism?
A. Functional Isomerism
B. Chain Isomerism
D. Structural Isomerism
Explanation: Structural isomerism is commonly referred to as constitutional isomerism
Chain Isomerism is also known as skeletal isomerism?
C. Can be true or false
D. Can not say
Explanation: True, Chain Isomerism is also known as skeletal isomerism.
Which of the following is an example of functional isomerism?
Explanation: An example of functional isomerism can be observed in the compound C3H6O.
Choose the incorrect option regarding Isomerism.
A. They differ in both physical and chemical properties
B. They have the different molecular formula
C. There are two types of Isomerism : Structural and Stereo Isomerism
D. Geometric and optical isomerism are two types of Stereo Isomerism
Explanation: Isomers are compounds that have same molecular formula.
Which among the following does not exhibit geometric isomerism?
Explanation: Alkenes like 1-hexene when flipped from top to bottom they have identical structures and also they have C=CH2 unit which does not exist as cis-trans isomers.
The molecular formula C5H12 contains how many isomeric alkanes?
Explanation: n-pentane, 2-ethylpropane, and 2-methylbutane are the 3 isomeric alkanes of C5H12 (pentane).
Geometric Isomerism is popularly known as cis-trans isomerism.
C. Can be Yes Or No
D. Can not say
Explanation: Yes, Geometric Isomerism is popularly known as cis-trans isomerism.