Which One of the Following Reactions Is an Example of an Oxidation-Reduction

question 46

Multiple Choice

Which one of the following reactions is an example of an oxidation-reduction reaction?

• A)BaO(s)+ CO₂(g)→ BaCO₃(s)
• B)H₂(g)+ F₂(g)→ 2HF(g)
• C)CaCO₃(s)→ CaO(s)+ CO₂(g)
• D)HCl(aq)+ NaOH(aq)→ NaCl(aq)+ H₂O(l)
• E)Ba²⁺(aq)+ SO₄^2-(aq)→ BaSO₄(s)

---

Definitions:

Encode

To convert data or a message into a specific format or code to ensure its efficient transmission, processing, or storage.

Second-level Domain

The part of a domain name that is located directly to the left of the top-level domain and is used to identify a specific organization or entity's website.

URL

Uniform Resource Locator, the address of a specific resource on the Internet.

DNS

Domain Name System, an internet service that translates domain names into IP addresses, facilitating the location of computer services and devices.