Question:
What type of isomerism is exhibited by neopentane?
What type of isomerism is exhibited by neopentane?
Show Hint
Neopentane is one of the three isomers of C$_5$H$_{12}$, which differ in carbon skeleton.
Updated On: Oct 3, 2026
- position
- chain
- geometrical
- tautomerism
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Identify the compound
Neopentane is 2,2-dimethylpropane, C\(_5\)H\(_{12}\).
Step 2: Find the isomer relation
C\(_5\)H\(_{12}\) has three structures: n-pentane, isopentane and neopentane. They differ only in the chain of carbon atoms, so this is chain isomerism.
Step 3: Others
Position isomerism needs a movable substituent or double bond. Geometrical isomerism needs a double bond or ring. Tautomerism needs a labile hydrogen with a carbonyl-like group. None applies.
Final Answer:
Neopentane shows chain isomerism, option (B). \[ \boxed{\text{(B) chain}} \]
Neopentane is 2,2-dimethylpropane, C\(_5\)H\(_{12}\).
Step 2: Find the isomer relation
C\(_5\)H\(_{12}\) has three structures: n-pentane, isopentane and neopentane. They differ only in the chain of carbon atoms, so this is chain isomerism.
Step 3: Others
Position isomerism needs a movable substituent or double bond. Geometrical isomerism needs a double bond or ring. Tautomerism needs a labile hydrogen with a carbonyl-like group. None applies.
Final Answer:
Neopentane shows chain isomerism, option (B). \[ \boxed{\text{(B) chain}} \]
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