disiamylborane adds to a triple bond to give an alkenylborane. upon oxidation with oh–, h2o2, the alkenylborane will form an enol that tautomerizes to an aldehyde. in the first box below, draw the mechanism arrows for the reaction of disiamylborane with the alkyne, and in the last box draw the structure of the aldehyde.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

c) should be the answer.