The correct answer is: C. Hydrogen peroxide.
Borax is a mineral compound with the chemical formula Na2B4O7.10H2O. It is a white, odorless, crystalline solid that is commonly used as a cleaning agent, a water softener, and a flux in soldering.
Saltpetre is a mineral compound with the chemical formula KNO3. It is a white, odorless, crystalline solid that is commonly used as a fertilizer, a preservative, and a component of gunpowder.
Sodium chloride is a mineral compound with the chemical formula NaCl. It is a white, odorless, crystalline solid that is commonly used as a food additive, a table salt, and a component of road salt.
Hydrogen peroxide is a chemical compound with the chemical formula H2O2. It is a colorless, odorless liquid that is commonly used as a disinfectant, a bleaching agent, and a rocket propellant.
Hydrogen peroxide is the only compound listed that is commonly used as an antiseptic in mouthwashes and toothpastes. It is a powerful oxidizer that can kill bacteria and other microorganisms. It is also a mild
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