What should raw food be washed with?

Correct option is D

​Correct Answer:(d) KMnO₄

Potassium permanganate (KMnO₄) is commonly used to wash raw food, such as fruits and vegetables, to remove surface contaminants, bacteria, and pesticides. When diluted in water, KMnO₄ acts as an effective disinfectant due to its oxidizing properties. It is safe for use in recommended concentrations and helps ensure food safety before consumption.

Information Booster:
● Role of KMnO₄: Acts as a strong oxidizing agent to kill germs and neutralize harmful residues.
● Dilution: A mild solution (approximately 0.1%) is sufficient for cleaning.
● Usage: Fruits and vegetables are soaked in KMnO₄ solution for a few minutes, followed by rinsing with clean water.
● Benefits: Ensures removal of microbial contamination and reduces the risk of foodborne illnesses.
● Precaution: Excessive use can leave residues and should be avoided; proper rinsing is essential.

Additional Knowledge:

• (a) HCl (Hydrochloric acid): A strong acid unsuitable for washing food due to its corrosive nature.
• (b) NaOH (Sodium hydroxide): A strong alkali, unsafe for food washing as it can cause chemical burns and is toxic.
• (c) H₂SO₄ (Sulfuric acid): Highly corrosive and unsuitable for any food-related purposes.