Question

question 1
provide the name of the catalyst for this reaction, if there was no catalyst used, choose none:
phosphoric acid
salicylic acid
acetic acid
none
acetic anhydride

Explanation:

Phosphoric acid is a common catalyst in certain chemical reactions. Salicylic acid, acetic acid, and acetic anhydride are not typically catalysts for the general - context reaction being referred to here. Since phosphoric acid is an option and is a known catalyst, it is the correct choice.

Answer:

phosphoric acid