What chemical compound is produced by the negative pole in electrolysis?

The correct answer, Sodium Hydroxide, is produced at the negative pole during the process of electrolysis. In electrolysis, when an electric current is passed through an electrolyte solution, ions migrate toward the electrodes. The negative electrode, known as the cathode, attracts positively charged ions (cations). In the context of an alkali electrolyte solution, such as sodium chloride in water, when the water undergoes electrolysis, hydroxide ions (OH-) from water are discharged at the cathode.

When sodium ions (Na+) are present in the electrolyte, they can react with the hydroxide ions at the cathode to form sodium hydroxide (NaOH). This reaction highlights the generation of the chemical compound at the negative pole. Consequently, the formation of sodium hydroxide is an essential concept in understanding the electrical dissociation of water and the resultant chemistry involved.

The other options represent different hydroxides or salts that may not be present or generated in a straightforward electrolysis process involving an aqueous sodium chloride solution, making them incorrect in this specific context.