Which of the Following Species Is Not Present in the Solution

question 183

Multiple Choice

Which of the following species is not present in the solution when solid sodium hydroxide is dissolved in water?

• A) H₂O(l)
• B) Na⁺(aq)
• C) OH⁻(aq)
• D) None, they are all present.

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Definitions:

Pollution Control

The practice of managing and reducing pollutants released into the environment to protect air, water, and soil quality.

Wastewater Treatment

The process of removing contaminants from wastewater to make it safe for discharge into the environment or for reuse.

Developing Countries

Countries characterized by a lower quality of life, undeveloped industrial sectors, and a lower Human Development Index compared to other nations.

Untreated Sewage

Waste water and solids that have not been processed or purified, often containing harmful bacteria, viruses, and chemicals.