Fill in the blanks by choosing the appropriate word/words from those given in the brackets.
(Monohydric, dihydric, trihydric, nitration, sulfonation, resonance stabilizaton, acidic, basic, `FeCl_(3),ZnCl_(2)`, more, less, aldehydes, ketones, Tollens' reagent, Luca's reagent, o-nitrophenol, p-nitrophenol, ethene, diethyl ether, fit, unfit, be, not be, `O_(2),Cl_(2)`, alkyl halides, oxonium, hydronium, alkyl, lone pairs of electrons, ethyl iodide, ethyl hydrogen sulfate, perchlorodiethyl ether, methyl iodide, ethyl hydrogensulfate, perchlorodiethyl ether, methyl iodide, dialkyl, hydrogen bonding, violet, green)
Benzyl alcohol and phenol can be distinguished by using ........... reagent.

Explanation

To solve the question, we need to fill in the blank with the appropriate reagent that can distinguish between benzyl alcohol and phenol.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- Benzyl alcohol has the structure C6H5CH2OH (a benzene ring with a CH2OH group).
- Phenol has the structure C6H5OH (a benzene ring with an OH group).

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