Wastewater New York State Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Wastewater New York State Exam. Dive into flashcards and multiple-choice questions with hints and explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

When chlorine gas is added to water, what acids are produced as per the equation Cl2+H2O?

Hydrochloric Acid and Ozone
Sulfuric Acid and Nitric Acid
Hypochlorous Acid and Hydrochloric Acid
Chloric Acid and Phosphoric Acid

The correct answer is: Hypochlorous Acid and Hydrochloric Acid

When chlorine gas is added to water, a chemical reaction occurs that produces hypochlorous acid and hydrochloric acid. The equation representing this reaction is: Cl2 + H2O ⇌ HCl + HOCl In this process, chlorine (Cl2) reacts with water (H2O) to create two acids: hypochlorous acid (HOCl), which is a weak acid that has disinfectant properties, and hydrochloric acid (HCl), which is a strong acid commonly found in various applications, including wastewater treatment. The formation of these specific acids is significant in contexts such as sanitation and disinfecting, as hypochlorous acid is primarily responsible for the antimicrobial activity. Understanding this reaction is crucial for wastewater treatment operators as it plays an essential role in the disinfection process. The other choices mentioned involve acids that are not produced through the reaction of chlorine gas with water, as they pertain to entirely different chemical processes or compounds.