To ensure the same NaOH production across follicles, which practice is recommended?

• A. Use the same needle diameter for each follicle
• B. Use different needle diameters
• C. Use deeper insertions only
• D. Change chemical concentration for each follicle

Answer: (A)

Consistent NaOH production across follicles comes from keeping the electrode geometry the same. The amount of NaOH generated during alkaline electrolysis depends on the surface area of the needle in contact with the follicle and the current density. By using the same needle diameter for every follicle, you standardize the surface area, so the chemical reaction occurs at a similar rate in each follicle and the NaOH output remains uniform. Using different needle diameters would change how much surface area is involved and thus alter the amount of NaOH produced per follicle. Deep insertions change how deep the effect goes but don’t guarantee equal NaOH generation if the electrode area differs, and changing chemical concentration per follicle directly creates variability in the reaction.