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MHT CET · Chemistry · General Organic Chemistry

Which from following pairs of compound is an example of position isomerism?

  1. A 2 methylprop-1-ene and But-1-ene
  2. B But-2-ene and Cis-But-2-ene
  3. C But-2-ene and 2-methylprop-1-ene
  4. D But-1-ene and But-2-ene
Verified Solution

Answer & Solution

Correct Answer

(D) But-1-ene and But-2-ene

Step-by-step Solution

Detailed explanation

\(\mathrm{CH}_3-\underset{\text { 1-butene }}{\mathrm{CH}_3}-\mathrm{CH}=\mathrm{CH}_2 \mathrm{CH}_3-\underset{2 \text {-butene }}{\mathrm{CH}}\)\(=\mathrm{CH}-\mathrm{CH}_3\)
Locant number will differ along same parent C-chain so it is position isomer.