Discussion
Consider the following statements about soda ash.
1. It can be made by the Solvay process or mined as trona.
2. It is used in large quantities by the glass industry.
3. It is chemically the same as caustic soda.
Answer: B
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: soda ash is made synthetically by the Solvay process and also mined as natural trona, and glass manufacture is its largest single use. Statement 3 confuses two different compounds - soda ash is sodium carbonate and caustic soda is sodium hydroxide, made by quite different routes and not interchangeable.
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