Statement I: When methanol is added to water boiling point of water decreases.Statement II: Methanol when added to water gives a non ideal solution with negative deviation.

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Statement I and Statement II are true.

Statement I is true and statement II is false.

Statement I is false and Statement II is true.

Statement I and Statement II are false.

answer is B.

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Detailed Solution

CH3OH-CH3OH ....... Inter molecular H-bondingH2O-H2O ....... Inter molecular H-bondingH2O-CH3OH ....... Inter molecular H-bondingInter molecular H-bonding between CH3OH - H2Ois weaker than in CH3OH-CH3OH and H2O-H2O VP of CH3OH - H2O is higher than expectedThis Azeotropic mix. shows positive deviation from Raoult's law VP is higher than expected its BP will be lesser than expectedBP of CH3OH - H2O is lesser than that of any one of its components.It is a minimum boiling azeotropeCH3OH - H2O mix. --- VP,higher than expected from Raoult's law ---- positive deviation (II) is false ---- BP lesser than that of pure CH3OH & H2O ----- minimum boiling azeotrope (I) is true

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