Question

Which of the following is an example of Maximum boiling azeotrope?

• A. $2 \% K C l$ solution in water
• B. $90 \%$ ethanol $+10 \%$ water
• C. $68 \% HNO _{3}+32 \%$ water
• D. None of the above

Answer 1

Answer: (C)

Nitric acid and water form maximum boiling point azeotrope at the composition $68 \% HNO _{3}$ and $32 \%$ water. The boiling point of azeotropic mixture or azeotrope is $120.5^{\circ}$.