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JEE Main20209 Jan 2020Morning ShiftChemistryHydrocarbonsActual

The correct order of heat of combustion for following alkadienes is:

Options

  1. Aa < b < c
  2. Ba < c < b
  3. Cc < b < a
  4. Db < c < a

Correct answer

A. a &#60; b &#60; c

Step-by-step solution

&#8756; Generally trans is more stable than cis form. Heat of combustion ( HOC ) &#8733; 1 &#160;Stability&#160; Stability : a > b > c HOC : c > b > a

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