While cooking,if the bottom of the vessel is getting blackened on the outside,it means that:

Draw the structural formula of methanoic acid.

On dropping a small piece of sodium in a test tube containing carbon compound $X$ with molecular formula $C_{2}H_{6}O$,a brisk effervescence is observed and a gas $Y$ is produced. On bringing a burning splinter at the mouth of the test tube,the gas evolved burns with a pop sound. Identify $X$ and $Y$. Also,write the chemical equation for the reaction. Write the name and structure of the product formed when you heat $X$ with excess concentrated sulphuric acid.

Chlorine reacts with saturated hydrocarbons at room temperature in the :

Write the chemical equations for the reactions of ethanoic acid with the following:
$(a)$ Sodium
$(b)$ Sodium hydroxide
$(c)$ Ethanol
Also,write the name of one main product for each reaction.

$(a)$ Give chemical tests to detect the presence of:
$(i)$ Ethanol
$(ii)$ Ethanoic acid
$(b)$ Why is ethanoic acid called glacial acetic acid?