(a)In which homologous series do the following compounds belong(i)#CH_3#CCH(ii) #CH_3CH_2#COOH(b)Raw rubber is heated with sulphur in the manufacture of natural rubber.(i)What is the name given to the process?(ii) Why is the process necessary?(c ) Study the scheme given below and answer the questions that follow.(i) Write an equation for the reaction between propan-1-Ol and potassium metal.(ii) Name processes I and II(iii) Identify the products A and B.(iv) Name one catalyst used in process II(v) Draw the structural formula of the repeating unit in the polymer C.(d) State two industrial uses of methane.