What is the common name for sodium hydroxide (NaOH) in industry?
Correct answer: B. Caustic soda
- A. Soda ash
- B. Caustic soda
- C. Slaked lime
- D. Quicklime
Explanation
Sodium hydroxide is commonly known as caustic soda because it is a highly corrosive (caustic) substance that can burn skin. It is a strong base with numerous large-scale industrial applications.
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