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An alkene X undergoes ozonolysis and gives two compounds Y and Z of molecular formula CHO. Y and Z. are functional isomers of each other Write the two-steps chemical equation for the conversion of X into Y and Z. 121 Write the structural formula of Y and 7. Why are they called functional isomers? [3] ili. What happens when hydrogen gas in the presence of nickel catalyst is passed over X? (1] TV. What is the application of ozonolysis in the organic reaction mechanism? 11 How can you prove chemically the compound X is unsaturated? [1]

Answer :

The answers to the given questions are given below.

What is Ozonolysis ?

A reaction done with Ozone to determine the position of C-C double bond in unsaturated Hydrocarbons.

It is given in the question

An alkene X undergoes ozonolysis and gives two compounds Y and Z of molecular formula CHO

Y and Z. are functional isomers of each other

  • The two-steps chemical equation for the conversion of X into Y and Z.

[tex]\rm \\(CH_3)_2 -C= CH-CH_2-CH_3 + Zn - > CH_3 -CO-CH_3 + CH0-CH_2-CH_3\\\\Y \;is \;CH_3 -CO-CH_3 \\\\and \;Z \;is \;CHO-CH_2-CH_3[/tex]

  • Here X is 2 methyl pent-2 ene
  • On reaction with ozone , ozonide is formed

                         [tex]\rm Y \;is \;CH_3 -CO-CH_3 \\\\and \;Z \;is \;CHO-CH_2-CH_3[/tex]

  • These are functional isomers as they have same molecular weight , but different functional groups.

  • When hydrogen gas in the presence of nickel catalyst is passed over  2 methyl pent-2 ene

  • A process called catalytic Hydrogenation will take place , and the alkene will get converted into alkane , 2-methyl pentane

  • The ozonolysis process is useful in the pharmaceutical industry

  • The unsaturation can be tested  by bromine water test

To know more about Ozonolysis

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