Fill in the blank by choosing the appropriate word/words from those given in the brackets.
(acetaldehyde, formaldehyde, benzaldehyde, yellow, white, violet, Cannizzaro's, Liebermann, no `alpha`-hydrogen atom, `1alpha`-hydrogen atom, `2alpha`-hydrogen atoms, aldol, `beta`-hydroxy aldehyde, aldol condensation, mixed condensation, + I,-I, -M,+ M. decreases, increases, benzalchloride, PCI, SOCh. sec, alcohol, tert, alcohol, phenylhydrozone, semicarbazone, more, less, acetals, ketals, silver mirror, test, urotropine, acetaldehyde cyanohydrin, lactic acid, benzoic acid, Sodalime, ethanoic acid, propanoic acid, electrolysis, Kolbe's electrolytic reaction, carbon dioxide, water, amides, alpha, halogen, phosphorus, weaker, stronger, ethyl alcohol, dibasic,monobasic, 2,2-dimethylpropanoic acid, `CH_(3)COCI`, acetic acid, `CH_(3)CH_(2)CH_(2)COOK`, enatiomers, diastereo, `K_(a)` `pk_(a)`, methanoic acid, higher, lower.)
Kolbe's electrolysis of ............... produces n-hexane at the anode.

Explanation

To solve the question, we need to fill in the blank regarding Kolbe's electrolysis. The question states: "Kolbe's electrolysis of __________ produces n-hexane at the anode."

### Step-by-Step Solution:

1. **Understanding Kolbe's Electrolysis**:
Kolbe's electrolysis involves the electrolysis of a salt of a carboxylic acid. During this process, the carboxylate ions undergo oxidation at the anode to form alkenes or alkanes.

2. **Identifying the Source Compound**:
...