Two carbon compounds A and B have the molecular formulae `C_(3)H_(8)` and `C_(3)H_(6)`, respectively. Which one of the two is most likely to show addition reaction? Justify your answer. Explain with the help of a chemical equation, how an addition reaction is useful in vegetable ghee industry.

Explanation

The compound 'A' with formula `C_(3)H_(8)` (propane) is a saturated hydrocarbon ad corresponds to general formula `C_(n)H_(2n+2)`. The compound 'B' with formula `C_(3)H_(6)` (propene) is an unsaturated hydrocarbon and corresponds to general formula `C_(n)H_(2n)`. it has a double bond (C=C) and is therfore, unsaturated.
`underset("Propane (A)")(H-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-H)" "underset("Propene (B)")(C-underset(H)underset(|)overset(H)overset(|)(C)-overset(H)overset(|)(C)=overset(H)overset(|)(C)-H)`
The compound 'B' will take part in the addition reactions. As a result, double bond will change to single bond. for example
`underset("Propene (B)")(H-underset(H)underset(|)overset(H)overset(|)(C)-overset(H)overset(|)(C)=overset(H)overset(|)(C)-H+H_(2))overset(Ni//473K)tounderset("Propane (A)")(H-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-underset(H)underset(|)overset(H)overset(|)(C)-H)`
the addition reaction is quite useful in the hydrogenation of oils i.e., to convert edible oils like ground nut oil and cotton seed oil which are unsaturated in natrue into solid fats which are of saturated nature.