Which statement lists corrosive examples?

• A. Air and nitrogen
• B. Sulfuric acid, sodium hydroxide, and battery fluid
• C. Oxygen and ozone
• D. Water, sugar, salt

Answer: (B)

Corrosives are substances that can cause rapid chemical burns to skin and eyes and can also corrode metals. Sulfuric acid is a classic corrosive acid that can burn tissue and degrade metals. Sodium hydroxide is a strong caustic base with similar damaging potential. Battery fluid, the electrolyte in lead‑acid batteries, is highly corrosive and can cause severe injuries on contact. These examples show acids, bases, and electrolytes as corrosive hazards. The other options don’t list corrosive hazards: air and nitrogen are inert or non-hazardous gases in ordinary handling; oxygen and ozone are reactive but not classified as corrosives in typical safety terms; water, sugar, and salt are not corrosive under normal conditions (though salt can accelerate metal corrosion in some contexts, it isn’t a corrosive hazard by itself).