Which of the following binary systems is an example of a maximum boiling azeotrope ?
Correct answer: A. Water-hydrochloric acid
- A. Water-hydrochloric acid
- B. Acetone-carbon disulphide
- C. Water-ethyl alcohol
- D. n-heptane-n-octane
Explanation
A water-hydrochloric acid mixture forms a maximum-boiling azeotrope because its boiling temperature is higher than that of either pure component. Water-ethanol and acetone-carbon disulfide are commonly associated with minimum-boiling behaviour, while n-heptane and n-octane are nearly ideal.
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