Name a common household substance that can be toxic if ingested in large amounts.

The selection of bleach as a common household substance that can be toxic if ingested in large amounts is correct because bleach contains sodium hypochlorite, which is a strong disinfectant and can cause severe harm if swallowed. Ingesting bleach can lead to chemical burns in the mouth and throat, gastrointestinal distress, and can be life-threatening depending on the amount consumed. Therefore, it is important to store bleach safely and use it according to the manufacturer's instructions to prevent accidental poisoning.

While vinegar, table salt, and baking soda are also common household substances, they do not pose the same level of acute toxicity when ingested in typical household amounts, although large quantities could lead to health issues as well. Vinegar is acidic but is generally safe in small amounts. Table salt can cause hypernatremia (high sodium levels), but it would require significantly high quantities to become life-threatening. Baking soda, while not toxic, can cause alkalosis if ingested in large amounts. Thus, bleach stands out due to its immediate and severe toxic effects when consumed in large quantities.