I dont understand how to answer this question. what reactions take place and what products would form?
First identify the functional groups in compound A Alcohol (OH) and carboxylic acid ( COOH), which is a weak acid Metal + acid -> salt + hydrogen Redox reaction
For 2 Add concentrated H2SO4 under reflux - esterification using alcohol and carboxylic acid I drew the last one as displayed, as I found it difficult to draw it in skeletal You need 2 for the last one because Compound A has 2 carbons Do make it cyclic structure, you can have 4 carbons in a ring And it said ‘dimer’, meaning you need 2 monomers