Which of the following has the lowest boiling point?

When phenol is treated with chloroform in the presence of sodium hydroxide,followed by hydrolysis in the presence of an acid,the product formed is:

The correct order for acidity of the following hydroxyl compounds is:
$A. CH_3OH$
$B. (CH_3)_3COH$
$C. C_6H_5OH$
$D. p-CH_3OC_6H_4OH$
$E. p-O_2NC_6H_4OH$
Choose the correct answer from the options given below:

Which compound has the highest value of $pK_{a}$?

Thymol,which is primarily a derivative of phenol,is used in which of the following?

What is the correct order of increasing dissociation constant $(K_a)$ for the following compounds?