Which molecule could not be obtained from the cracking of a molecule of nonane, ch3(ch2)7ch3? a ch2=chch=ch b ch3ch2ch2ch2ch3 c ch3ch2ch2ch2ch2ch=ch2 d (ch3ch2ch2)3ch cie as level 9701/13/m/j/14

            Option-D [(CH₃CH₂CH₂)₂CH] is the correct answer.

Explanation:
                   In chemistry Cracking the process by which a long chain of hydrocarbons are broken down into small molecules or light hydrocarbons.
                   In given example Nonane is a compound which consists of Nine carbon atom chain. So, on cracking it can produce small organic molecules with carbon atoms less than nine.
                  While option-D is for 4-propylheptane which is made up of 10 carbon atoms. Therefore, Nonane on cracking can not produce a hydrocarbon with greater number of carbon atoms.