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An organic compound X on heating with conc.sulphuric acid forms a compond Y which on addition of one molecule of hydrogen in the presence of nickel forms a compound Z. One molecule of Z on combustion forms 2 molecules of carbondioxide and 3 molecules of water. Identify giving reasons X,Y,Z. Write chemical reactions for each.

Asked by Akriti 14th March 2013, 6:54 PM
Answered by Expert
C2H6 + 7/2O2 -----> 2CO2 + 3H2O
Combustion of ethane gives 2 molecules of CO2 and 3 molecules of H2O. So, Z is ethane.
Z is formed on reduction of Y in the presence of nickel.
C2H4  + H2 -----> C2H6
ethanol with a large quantity of concentrated sulphuric acid on heating produces ethene.

CH3-CH2-OH -------> CH2=CH2 + H2O

Therefore, X is ethanol, Y is ethene and Z is ethane.

Answered by Expert 16th March 2013, 6:13 AM
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