Identify the trihydric phenol from the following.

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.

Identify the incorrect statement from the following.

Which of the following is the major product,when $p$-cresol is treated with zinc dust?

The sequence of reactions is: $Phenol$ $\xrightarrow[\Delta]{Zn \, dust} X$ $\xrightarrow[\text{Anhydrous } AlCl_3]{CH_3Cl} Y$ $\xrightarrow[\Delta]{KMnO_4} Z$. The final product $Z$ is:

The acidic property of phenol is due to which of the following?