Topic: Ideal and non-ideal solutions· Solutions

The mixture that forms maximum boiling azeotrope is :

1. Water + Nitric acid

2. Ethanol + Water

3. Acetone + Carbon disulphide

4. Heptane + Octane

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 1. Water + Nitric acid

Maximum boiling azeotropes come from solutions with negative deviation from Raoult's law. Nitric acid and water show strong negative deviation (the azeotrope boils near 120 C, about 68% \(\mathrm{HNO_3}\)). Ethanol-water and acetone-\(\mathrm{CS_2}\) show positive deviation (minimum boiling), and heptane-octane is nearly ideal. Answer: option (1).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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The mixture that forms maximum boiling azeotrope is :

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