Question

1. what gaseous product evolved during the reaction and how isit formed (hint: an excess of BH4 is used so what else might it beable to react with)?

2. What absorption is diagnostic of benzophenone and not presentin benzhydrol (give frequency and functional group); and whatabsorption is diagnostic of benzhydrol and not present inbenzophenone

3. compare the IR spectra of the student products (posted toBlackboard) with the IR spectra of pure benzophenone and benhydrolsamples shown below in Figure 2,3,4; do thestudent spectra show product? Are the student products very pure oris it a mixture of reactant and product? P.S Please referFigure 1

4. comment on whether the product melted quickly (< 3 0Ctemperature range) or slowly (> 3 0C temperature range)? Whatdoes this observation tell you about the compound purity? P.S mymelting point was range of 65~67

Figure 1

Figure 2,3

Figure 4