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CBSE Class 10 Answered

Wrkte the name of tne reason that converts alkene to alkanes . Show the chemical equation to show the necessary conditions.
Asked by aahlad06 | 10 Jan, 2018, 09:23: PM
answered-by-expert Expert Answer
The change of alkene to alkane is an addition reaction and it is carried out by addition of hydrogen to alkenes.The reaction is known as hydrogenation.
 
When ethene and hydrogen are passed over finely divided catalysts such as platinum or palladium at ordinary temperature or nickel at 200oC, two atoms of hydrogen molecule are added to the unsaturated molecule, which thus becomes a saturated one i.e., ethane
                    C H subscript 2 equals C H subscript 2 space end subscript space space plus space H subscript 2 space space space space space end subscript rightwards arrow with P t on top space space space C H subscript 3 minus C H subscript 3 space space E t h e n e space space space space space space space space space space space space space space space space space space space space space space space space space space space space space E t h a n e
 
Answered by Ramandeep | 11 Jan, 2018, 09:57: AM

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