Which hydrocarbon is produced when sodium propionate is heated with sodalime?

Methane can be prepared by:

Prepare the following products from methane $(CH_4)$: $(i)$ Methyl chloride,$(ii)$ Carbon black,$(iii)$ Carbon dioxide,$(iv)$ Methanol,$(v)$ Methanal,$(vi)$ Carbon monoxide,$(vii)$ Dihydrogen,$(viii)$ Methyl iodide,$(ix)$ Methyl bromide.

When ethyl iodide and propyl iodide react with $Na$ in the presence of ether,they form

The reactions of alkanes are explosive with which halogen?

Acetic acid is reacted with metallic sodium to form hydrogen and $X$. When $X$ is heated with sodalime,$Y$ and sodium carbonate are formed. $Y$ is