Decarboxylation of sodium salicylate with soda lime forms

What will be the product $X$ in the following reaction?

What is the natural source of salicylic acid?

An organic compound with the molecular formula $C_6H_6O$ dissolves in $NaOH$, gives a characteristic colour with neutral $FeCl_3$ and on treatment with bromine water gives a tri-bromo derivative. Which is that compound among the following?

What is the common name of $Benzene-1,3-diol$?

Which one of the following compounds will readily react with dilute $NaOH$?