Compund A(C12H18), upon treatment with H2 gas in the presence of Lindlar's catalyst, furnished compund B(C12H20) as the only product. Compound B was then treated first with ozone and then with zinc dust to yield two couponds in equal amounts (see information below). Provide the structures for A and B, being careful to show any relevant stereochemistry. As well, be sure to explain your reasoning.
The two compounds that were produced in equal amounts are:
Product 1: acetone - CH3C(=O)CH3
Product 2: CH(=O)CH2CH(=O) OR CHOCH2CHO (Note: I wrote the 2nd product two different ways because I'm having difficulty naming it. It appears to be an aldehyde)