show the reagents required to form the primary alcohol in each of the following reactions: there are ten schemes of reactions of different organic molecules yielding rch2oh as a product. the reactants are (clockwise): rchch2 with a double bond between the carbon atoms; rch2br; rch2och3; a three-membered ring, where an o atom is followed by a segment with two vertices; a carbon atom with an o atom double-bonded and two h atoms attached; rcocr with an o atom double-bonded to the first (from left to right) and to the second carbons; rccl with and o atom double-bonded to the carbon; rcor with an o atom double-bonded to the carbon; rcoh with an o atom double-bonded to the carbon; rch with an o atom double-bonded to the carbon.