What is the purpose of the sulfuric acid.

Anthralic acid have two nucleophilic functional groups, therefore in itsreaction with aceticanhydride three possible acylated products are possible.a. What are the structures of these acylated products.b. Show using mechanism how these products are formed.c. With reference to your procedure what controlling principle was used to minimizethe possibility of multiple acylated products.d. Demonstrate how you could distinguish between these compounds using IR andMS.OHONH2OO ONHOOHORefluxAnthralinic acid N-acetylanthralinic acidPart B: Fischer Esterification of a carboxylic acidEsterification is one of many nucleophilic acyl substitution reaction. In this process an alcohol iscoupled with a carboxylic acid or carboxylic acid derivative. When an alcohol is coupled withcarboxylic acid a catalysis or a coupling reagent is required because of the decrease reactivity ofcarboxylic acid as an electrophile. When acid is employed the reaction is referred to as the FischerEsterification.The following are the updates made because we are now online.1) No prelab is necessary.2) Watch the video labelled “Synthesis of Methylbenzoate – Fischer Esterification”.a. This video covers in detail what you will be doing, however the benzoic acid (ArCO2H) is different. The process is the same.3) Try to understand the content of the experiment and follow instructions for a reportWriting the Report:2. According to your procedure, 1 mL of sulfuric acid is required. However, after heating atreflux for 30 minutes you realized that sulfuric acid was not added.a. What is the purpose of the sulfuric acidb. Provide a chemical explanation for what you would do next.c. Provide a mechanism for the reactiond. If the reaction work, how would the identity of the product be confirmed