Which option lists the two battery types in standard form?

• A. Wet cell and dry cell batteries
• B. Lead-acid and NiCd batteries
• C. Alkaline and zinc-air batteries
• D. Solid-state and lithium-ion batteries

Answer: (A)

Understanding how batteries are categorized helps. When talking about standard forms, the traditional distinction is based on the electrolyte state: a wet cell contains liquid electrolyte, while a dry cell uses a paste electrolyte and is sealed. Wet cells are common in larger, rechargeable batteries; dry cells are typical for small, portable devices. So, the option that lists the two broad standard-form categories is the one that names wet cell and dry cell.

The other options name specific chemistries (such as lead-acid, NiCd, alkaline, zinc-air, solid-state, lithium-ion). These are real battery types, but they refer to particular chemistries rather than the general electrolyte-based classification that the term “standard form” in this context is asking for.