Final answer:
Under-applying PDOH can lead to incomplete or undesired reactions in organic chemistry, specifically in hydrogenation reactions.
Step-by-step explanation:
When you under-apply PDOH (Principle of Dalton's Hydrogenation), the reaction may not proceed to completion or the desired extent. PDOH is a concept used in organic chemistry that describes the addition of hydrogen to a compound in the presence of a catalyst. Under-applying PDOH means not using enough hydrogen or the proper conditions for the reaction to proceed optimally.
For example, if you under-apply PDOH in a hydrogenation reaction of an alkene, the reaction may result in only partial reduction of the double bond or no reduction at all. This can lead to the formation of unwanted reaction by-products or the absence of the desired product.
It is important to carefully follow the appropriate PDOH conditions, such as using the correct amount of hydrogen and catalyst, maintaining the appropriate temperature and pressure, and allowing sufficient reaction time, to ensure a successful and efficient hydrogenation reaction.