What is the boiling point of propanone (in $;K$)?

Why should we prefer vegetable oils over animal fats for cooking food? Give a balanced chemical equation for the reaction for hydrogenation of vegetable oils. Name the catalysts in this reaction.

Write true or false for the following statement:
Saturated hydrocarbons will generally give a clean flame,while unsaturated carbon compounds will give a yellow flame with lots of black smoke.

An organic compound $A$ of molecular formula $C_{2}H_{4}$ on reduction gives another compound $B$ of molecular formula $C_{2}H_{6}$. $B$ on reaction with chlorine in the presence of sunlight gives $C$ of molecular formula $C_{2}H_{5}Cl$.
$(a)$ Name the compounds $A, B$ and $C$.
$(b)$ Write the chemical equation for the conversion of $A$ to $B$ and name the type of reaction.

In the presence of which catalyst is vegetable ghee prepared from vegetable oil?

What is formed when methanol reacts with carbon monoxide in the presence of an $I_2-Rh$ catalyst?