Multiple choice

Which of the following pairs of compounds do not represent pairs of constitutional isomers? A. Propanal and 1-Propanol B. 2-Methylbutane and pentane C. 2-Chlorohexane and 3-chlorohexane

Chose the correct code given below:

  1. A only

  2. B only

  3. C only

  4. A and B

  5. A, B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Constitutional or Structural isomerism is a form of isomerism in which molecules with the same molecular formula have bonded together in different orders, i.e. they each have a different structural formula. ⇒ Propionaldehyde or propanal (CH3CH2CHO) is the organic compound with the molecular formula C6H6O. ⇒ 1-Propanol (CH3CH2CH2OH) is the organic compound with the molecular formula C6H8O.

Propanal and 1-Propanol molecular formula are different so they are not able to show the Constitutional or Structural isomerism.

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