Consider the reaction between (R)-4-methyl-1-heptene and BH3 then H2O2, NaOH. Assume that the alkene is enantiomerically pure and optically active. How many new stereoisomers are formed

Hope the image of the frequency formula

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf