What is an "electrophilic aromatic substitution" reaction? In the first part of this experiment, why is it important that glassware not be wet with acetone? List three different activating substituents, and different deactivating substituents in electrophilic substitution reactions, and explain why these substituents are referred to as "activating or deactivating". Which of the two products formed in the reaction, o-nitrochlorobenzene or p-nitrochlorobenzene, would you expect to have the greater Rf in a TLC analysis of a mixture of the two compounds? Explain your reasoning. For each of the following compounds, what would be the major mono-nitration product formed in an electrophilic aromatic substitution reaction? The melting points for pure o-nitrochlorobenzene and pure p-nitrochlorobenzene are 34 degree C and 84 degree C, respectively. If a solid sample contains 80% of the para-isomer and 20% of the ortho-isomer, how would the melting point (range) for the mixed sample compare with the melting points for the pure compounds? That is, would the observed melting point (range) for the mixed sample be expected to be higher, lower, broader, sharper, or the same as the pure compounds?