The name of the compound $CH_{3}-CH_{2}-CHO$ is

Why are detergents better cleansing agents than soaps? Explain.

Ethanol reacts with sodium and forms two products. These are:

Carbon,a Group $14$ element in the Periodic Table,is known to form compounds with many elements. Write an example of a compound formed with:
$(a)$ Chlorine (Group $17$ of Periodic Table)
$(b)$ Oxygen (Group $16$ of Periodic Table)

What are hydrocarbons? Give examples.

The first member of the alkyne homologous series is: