Chemistry, asked by rajkimar1005, 1 year ago

In dehydrohalogenation of C2H3Cl with alcoholic koH the change in hybridization of carbon atom is

Answers

Answered by ranjanalok961
8
Hybridisation change from SP² TO SP
Answered by amritanshu6
2
Hydrogenation. Alkynes undergo catalytic hydrogenation with the same catalysts used in alkene hydrogenation: platinum, palladium, nickel, and rhodium. Hydrogenation proceeds in a stepwise fashion, forming an alkene first, which undergoes further hydrogenation to an alkane.


This reaction proceeds so smoothly that it is difficult, if not impossible, to stop the reaction at the alkene stage, although by using palladium or nickel for the catalyst, the reaction can be used to isolate some alkenes. Greater yields of alkenes are possible with the use of poisoned catalysts. One such catalyst, the Lindlar catalyst, is composed of finely divided palladium coated with quinoline and absorbed on calcium carbonate. This treatment makes the palladium less receptive to hydrogen, so fewer hydrogen atoms are available to react. When a catalyst is deactivated in such a manner, it is referred to as being poisoned.


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