Which of the following reaction involves homogeneous reduction ?

1.	Which of the following reaction involves homogeneous reduction ?
Answer» `CH_(2)=CH_(2) OVERSET(H_(2)//NI)rarr CH_(3)-CH_(3)` `CH_(3)-C-=C-CH_(3) overset("Wilkison's catalyst")rarr CH_(3)-CH=CH-CH_(3)` `CH_(3)COCl overset(H_(2)//Pd//CaCO_(3)//"quinonline")rarr CH_(3)CHO` `CH_(3)C-=CH overset(H_(2)//Pd//CaCO_(3)//"quinonline")rarr CH_(3)CH=CH_(2)` Solution :Reduction with Wilkinson's catalyst is homogeneous

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