Basic Wastewater Operator Practice Exam

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Prepare for the Basic Wastewater Operator Test. Study with flashcards and multiple-choice questions, each with hints and explanations. Ace your exam with comprehensive materials!

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What is the chemical formula for sulfuric acid?

HNO3
HCl
NaOH
H2SO4

The correct answer is: H2SO4

Sulfuric acid is a strong acid with the chemical formula H2SO4. It consists of two hydrogen (H) atoms, one sulfur (S) atom, and four oxygen (O) atoms. This structure contributes to its highly corrosive nature and versatility in various chemical reactions, making it one of the most important industrial chemicals. In contrast, other options represent different compounds: HNO3 is nitric acid, effective in nitration and metal etching; HCl is hydrochloric acid, commonly used in cleaning and pH adjustment; and NaOH is sodium hydroxide, a strong base used in soap-making and other processes. Understanding these distinctions is critical for wastewater treatment operations, as the handling and implications of each chemical differ significantly.