Out of the following pairs of compounds, the unsaturated compounds are :
(a) C2H6 and C4H6 (b) C6H12 and C5H12 (c) C4H6 and C6H12 (d) C2H6 and C4H10
(c) C4H6 and C6H12
C4H6 and C6H12 are unsaturated compounds as they correspond to the formula CnH2n−2 and CnH2n. They belong to the group alkyne and alkene respectively.