An alkene 'A' (Mol. formula C_5H_10) on ozonolysis gives a mixture of two compounds 'B' and 'C. Compound 'B' gives positive Fehling's test and also forms iodoform on treatment with I_2 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.

An alkene 'A' (Mol. formula C_5H_10) on ozonolysis gives a mixture of

1.	An alkene 'A' (Mol. formula C_5H_10) on ozonolysis gives a mixture of two compounds 'B' and 'C. Compound 'B' gives positive Fehling's test and also forms iodoform on treatment with I_2 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.
Answer» Solution : Compounds A, B, C arc as follows : `a: CH_(3)-CH=underset(CH_(3))underset(\|)C-CH_(3), B: CH_(3)-CHO, C: CH_(3) -underset(CH_(3))underset(\|)C=O` `underset("2-Methylbut-2-ene")(CH_(3)-CH=underset(CH_(3))underset(\|)C) - CH_(3) overset((i)O_(3))underset((II)Zn//H_(2)O)to underset((B))(H_(3)C -CHO) + O = underset((C ))underset(CH_(3))underset(\|)C-CH_(3)` Compounds CONTAINING `CH_(3)CO`-group give the iodoform test. `CH_(3)CHO overset(NaOl) to HCOONa +CHl_(3)` `CH_(3) - overset(O)overset(\|\|)underset(CH_(3))underset(\|)C overset(NaCl)to CH_(3)COONa + CHI_(3)`