An alkene a molecular formula C5H10 on ozonolysis gives a mixture of compound 'B' and 'C'. Compound 'B' gives positive Fehling's test and also forms iodoform on treatement with I₂ and NaOH. Compound 'C' does not give Fehling's test but forms iodoform. Identify the compounds A, B and C. Write the reaction for ozonolysis and formation of iodoform from B and C.