Identify positional Isomerism from following pairs:
A
Propan-1-ol, Propan-2-ol
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B
Propan-2-ol, Pentan--1-ol
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C
Phenol, Benzene
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D
Ethyl alcohol and Methyl Alcohol
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Solution
The correct option is A Propan-1-ol, Propan-2-ol
Propan-1-ol (CH3−CH2−CH2−OH) and Propan-2-ol (CH3−CHOH−CH3)exhibits position Isomerism. They have same molecular formula but differ in the position of −OH group.