An organic compound `C_(8)H_(18)` on monochlorination gives a single monochloride. Write the structure of the hydrocarbon.

An organic compound C_5H_11X an dehydro-halogenation gives pentene-2 only. What is halide ?

An unsaturated hydrocarbon having the molecular formula C_5H_8 gives two molecules of formal dehyde and one molecule of 2- ketopropanal on ozonolysis.Write the structure of the hydrocarbon .

Write the structure of a compound with a coordinate bond.

Give the structural isomers of C_5H_12 .

An organic compound A(C_(5)H_(8)O_(3)) on heating with soda lime gives B which reacts with HCN to give C. The compound C reacts with thionyl chloride to produce D which on reaction with KCN gives a coompound E. Alkaline hydrolysis of E gives a salt F which on heating with soda lime produces n-butane. Careful oxidation of A with dichromate gives acetic acid and malonic acid. Give the structures from A to F with proper reason.