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 Mar, 2013, 06:54: PM

Expert Answer:

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.        

Aswered by  | 16th Mar, 2013, 06:13: AM

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