12.1. Write the structures of the following compounds:(i) α-Methoxypropionaldehyde(ii) 3-Hydroxybutanal(iii) 2-Hydroxycyclopentane carbaldehyde(iv) 4-OxopentanaI(v) Di-sec.butylketone(vi) 4-fluoroaeetophenoneAns: 12.2. Write the structures of the products of the following reactions:Ans: 12.3. Arrange the following compounds in increasing order of their boiling…