Answer 1

Cyclohexanone

Answer 2

Compound (A), cyclohexane-1,2-dicarboxylate, undergoes intramolecular Claisen condensation (Dieckmann condensation) in the presence of NaOEt to form the cyclic $\beta$-keto ester, ethyl 2-oxocyclohexane-1-carboxylate (B). Subsequent hydrolysis with H$_3$O$^+$ converts the ester to a carboxylic acid, 2-oxocyclohexane-1-carboxylic acid. Heating this $\beta$-keto carboxylic acid causes decarboxylation, yielding cyclohexanone (C).