Question

Two carbon compounds 'A' and 'B' have the molecular formula C3H8 and C3H6 respectively which one of the two is most likely to show addition reaction?? Justify the answer please....!Explain with the help of a chemical equation. how an addition reaction is useful in vegetable ghee industry??

Answer 1

compound B will show addition reaction.

because C3h6 is alkene so its has double bond between carbon carbon atom so after addition reaction its Bond will break and IT form C3 h8
vegetable oils are unsaturated hydrocarbons , therefore when they remain exposed to hot and humid weather for a long time they turn rancid i.e. they start developing unpleasant taste and smell. 
But when the addition reaction is done with vegetable oil they become efficient to remain exposed to hot and humid weather. in other words when hydrogenation is done with vegetable oils and vanaspati ghee is formed which has saturated carbon chains which slows down its development of rancidity.Industrial use: It is used to convert vegetable oil into vanaspati ghee.

Sry for radiation of reaction

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Answer 2

HERE IS YOUR ANSWER MATE

(a) C3H6 will show addition reaction as it is an unsaturated hydrocarbon.

(b) C3H6 reacts with hydrogen in the presence of a catalyst to give ethane on adding one molecule of  hydrogen across carbon-carbon bond.

C3H6 + H2 → C3H8

Vegetable oil reacts with hydrogen in presence of Ni as a catalyst to form vegetable ghee which is a  saturated compound