The figure below represents the set up that was used to crack an alkane

      

The figure below represents the set up that was used to crack an alkane
alkane4122017508.jpg
a) What was the purpose of the sand?
b) After some time, a colourless gas G collected in the test-tube. Describe a chemical test and observations that would be made in order to identify the class of compounds to which gas G belongs.

  

Answers


John
a) Serves as a catalyst

b) Add bromine water or acidified potassium manganite (VII). If they decolorize then gas is either an alkene or an alkyne
johnmulu answered the question on April 12, 2017 at 14:13


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