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प्रश्न
The mixture that forms maximum boiling azeotrope is ______.
पर्याय
ethanol + water
acetone + carbon disulphide
heptane + octane
water + nitric acid
MCQ
रिकाम्या जागा भरा
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उत्तर
The mixture that forms maximum boiling azeotrope is water + nitric acid.
Explanation:
Azeotropes are mixtures that boil at a constant temperature and retain the same composition in vapour and liquid phases. A maximum boiling azeotrope occurs when the mixture shows negative deviation from Raoult’s law (stronger A-B interactions). Water and nitric acid form a maximum boiling azeotrope at about 68% HNO3 and boil at 121°C, which is higher than both pure components.
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