Phosphoric Acid - The last answer choice
Phase transfer catalyst is used when oxidizing methoxybenzyl alcohol because it is able to dissolve in both the ethyl acetate and the aqueous layers.
What is phase transfer catalyst?
A phase-transfer catalyst, often known as a PTC, is a catalyst that helps a reactant move from one phase into another where a reaction takes place. Heterogeneous catalysis features a unique subset known as phase-transfer catalysis.
In the absence of a phase-transfer catalyst, ionic reactants are frequently soluble in an aqueous phase but insoluble in an organic phase. When introducing salts into the organic phase, the catalyst acts as a detergent. When a phase-transfer catalyst is added, the reaction is said to be catalyzed, which means it is accelerated.
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Answer:
A. To increase enthalpy
Explanation:
Because the burner is the engine of the hot air balloon it is what propels the hot air up into the envelope to make the balloon rise
Answer:
A) plugging your nose
This is because of your olphactory bulb being blocked. This is the series of nerve endings in your nose, that not only allows you to smell, but to taste at the same time.