In Which Reaction Does the Oxidation Number of Oxygen Increase

question 67

Multiple Choice

In which reaction does the oxidation number of oxygen increase?

• A)Ba(NO₃)₂ (aq)+ K₂SO₄ (aq)→ BaSO₄ (s)+ 2KNO₃ (aq)
• B)HCl (aq)+ NaOH (aq)→ NaCl (aq)+ H₂O (l)
• C)MgO (s)+ H₂O (l)→ Mg(OH)₂ (s)
• D)2SO₂ (g)+ O₂ (g)→ 2SO₃ (g)
• E)2H₂O (l)→ 2H₂ (g)+ O₂ (g)

---

Definitions:

Central Venous Access Devices

Medical devices used to deliver medications, fluids, or nutrients directly into the venous system.

Bitter Medications

Medicines that have a naturally bitter taste, often requiring flavor masking to be palatable for patients, especially children.

Sweet-tasting Substance

A substance that has a sugary flavor, often used to enhance the taste of food and drinks.

Intramuscular Injections

A method of delivering medications deep into the muscles, where they are quickly absorbed into the bloodstream.