The Oxidation Number of Cr in Cr₂O₇^2- Is

question 94

Multiple Choice

The oxidation number of Cr in Cr₂O₇^2- is

• A) -12.
• B) -7.
• C) -2.
• D) +6.
• E) +7.

---

Definitions:

Refuse Collected

The activity of gathering waste materials for disposal or recycling.

Greenhouse Gas Abatement

Actions or strategies aimed at reducing the emissions of greenhouse gases to mitigate climate change.

Marginal Costs

The cost incurred by producing one additional unit of a product or service.

Economic Returns

The financial gains or profits achieved from an investment or business operation.