Chemical formula of 'salt cake' is____________________?
Correct answer: A. Na2SO4
- A. Na2SO4
- B. CaSO4
- C. MgSO4
- D. BaSO4
Explanation
Salt cake is the industrial name for sodium sulfate, Na2SO4, commonly produced as a by-product in the hydrochloric acid process. The other sulfates listed are different compounds and are not called salt cake.
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