Comments on: O Levels Chemistry Questions – Organic Chemistry (Cracking of Crude Oil) http://www.simplechemconcepts.com/chemistry-question-organic-chemistry-3/ O-Level Chemistry Made Easy Sat, 14 Jan 2012 03:43:17 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: sean http://www.simplechemconcepts.com/chemistry-question-organic-chemistry-3/comment-page-1/#comment-977 sean Tue, 08 Jul 2008 17:24:36 +0000 http://simplechemconcepts.com/chemistry-question-organic-chemistry-3/#comment-977 Well Done Jennifer! Keep the momentum going.. for b) since catalyst is used, sometimes we call it Catalytic Cracking. Cheers Sean Founder & Master Trainer SimpleChemConcepts.com Well Done Jennifer! Keep the momentum going..

for b) since catalyst is used, sometimes we call it Catalytic Cracking.

Cheers
Sean
Founder & Master Trainer
SimpleChemConcepts.com

]]> By: Jen http://www.simplechemconcepts.com/chemistry-question-organic-chemistry-3/comment-page-1/#comment-945 Jen Thu, 03 Jul 2008 13:38:44 +0000 http://simplechemconcepts.com/chemistry-question-organic-chemistry-3/#comment-945 a) C20H42(silicon oxide or aluminium oxide catalyst under high temperatures and pressure) -> 6C2H4 + C8H18 b) Cracking c) Add a few drops of bromine to the reaction mixture in a dark room. If ethene an alkene is present, the reddish-brown colour of bromine decolourises till it is colourless. a) C20H42(silicon oxide or aluminium oxide catalyst under high temperatures and pressure) -> 6C2H4 + C8H18

b) Cracking

c) Add a few drops of bromine to the reaction mixture in a dark room. If ethene an alkene is present, the reddish-brown colour of bromine decolourises till it is colourless.

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