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)
Ethanol when heated with conc. `H_(2)SO_(4)` at 443 forms ............

Explanation

To solve the question, we need to understand the reaction that occurs when ethanol is heated with concentrated sulfuric acid at a specific temperature.

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this case are ethanol (C2H5OH) and concentrated sulfuric acid (H2SO4).

2. **Understand the Reaction Conditions**: The reaction is carried out at a temperature of 443 Kelvin. This temperature is significant for the reaction to proceed effectively.

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