What is the boiling point of methanal (in $,K$)?

Write true or false for the following statement:
Two pairs of electrons are shared between two nitrogen atoms to form a nitrogen molecule.

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.

Alcohols may be represented by the general formula:

Ethanol reacts with sodium and forms two products. These are

What is produced when ethanol reacts with sodium metal?