The decreasing order of acidic strength of different $(-OH)$ groups 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:

Choose the incorrect option based on the reaction:
$(P)$ + $CH_3-CO-Cl \rightarrow (Q)$
Where $(P)$ is salicylic acid and the structure of $(Q)$ is given as:
$(Q)$ is a benzene ring with an $-OH$ group and a $-COO-CO-CH_3$ group at ortho position.

The nature of $2,4,6-$trinitrophenol is

When a mixture of vapours of phenol and hydrogen is passed over nickel catalyst at $433 \ K$,the product obtained is

Phenol $\xrightarrow{NaNO_2/H_2SO_4} B$ $\xrightarrow{H_2O} C$ $\xrightarrow{NaOH} D$. The name of the above reaction is: