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)
Diethyl ether on heating with conc. HI gives two molecules of........

Explanation

To solve the question, we need to fill in the blank regarding the reaction of diethyl ether with concentrated HI (hydrogen iodide). Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Reactants
Diethyl ether (C2H5OC2H5) is an ether, and when it is treated with concentrated hydrogen iodide (HI), a nucleophilic substitution reaction occurs.

**Hint:** Identify the nature of the reactants and their functional groups.

### Step 2: Ionization of Hydrogen Iodide
...