33. M/J 2014/P12/Q34
Which process is an example of cracking?
A C2H4 + H2O → C2H5OH
B C3H6 + H2 → C3H8
C C3H8 + 5O2 → 3CO2 + 4H2O
D C4H10 → C2H4 + C2H6
Answer: D
Explaination
Cracking is a process in which long carbon chain alkane molecules broken up into smaller molecules.
Here in the above equation, a single large alkane molecule octane (C8H18) undergo cracking to produce butane (C4H10) molecule and ethene (C2H4) molecules.
C8H18 ----------------------------------> C4H10 + C2H4
Octane butane ethene
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