Question

What happen when ethane is heated to 500o. Give the mechanism of this decomposition of compound by heat. (2)​

Answer 1

C+2H2

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Answer 2

A phenomenon known as pyrolysis takes place if ethane is burnt in the absence of oxygen at 500 degrees celsius. This takes place in the presence of Al2O3 as catalyst.  

The reaction is as follows: C2H6------> C2H4 + H2 (Al2O3 at 500 degrees C).

This reaction is an example of catalytic dehydrogenation at high temperature or pyrolysis.

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