$1$ Complete the reaction scheme. Identify the compounds!$2.$Provide the missing information in the synthesis scheme below. Identify the compounds!$3.$Provide the Kn$$venagel condensation product between malonic acid and the given ketone. What compound is obtained upon heating the condensation product? Specify all chemical transformations mechanisms and name the reaction products!$4.$Obtain C$6$H$5$CHN$2,$ write the reaction of the compound with: a$)$ HBr$,$ b$)$ benzoyl chloride in the presence and absence of triethylamine, c$)$ under intense light with the presence of ethylene. Name the reaction products$\mathrm{.}5.$Using diazomethane as one of the reagents, describe the reaction sequence to obtain the given compound below$\mathrm{.}6.$Describe the method of obtaining the given compound below. Provide all possible reaction products with ethyl bromide present and explain the mechanism of its formation. Describe the obtaining of $3$ different heterocycles based on the compound.I also pin fil of question with question pictures. Please solve it except $3$rd question. Hope you will do it