Cracking 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEEdexcel Created by: Jane555Created on: 15-07-20 11:06 Why are alkanes cracked ? to produce smaller more useful molecules 1 of 9 What are shorter chain alkanes used for ? for fuels e.g = cars 2 of 9 When you crack alkanes what do you get ? A short chain alkane and an alkene 3 of 9 Name two types of cracking !!! Catalytic cracking and Steam cracking 4 of 9 What does a catalyst do ? It speeds up the reaction 5 of 9 Do alkenes have only single bonds or at least one double bond ? At least one double bond 6 of 9 Are alkanes more or less or the same reactive than alkenes ? Less reactive 7 of 9 How do you test for alkenes ? If you shake the bromine water with the alkene then the bromine water turns colourless. 8 of 9 If C25H52 is cracked and we are given C20H42 ..... C5H10 9 of 9
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