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Which of the following liquid pairs shows a positive deviation from Raoult's law?

Options

  1. AWater - hydrochloric acid
  2. BAcetone - chloroform
  3. CWater - nitric acid
  4. DBenzene - methanol

Correct answer

D. Benzene - methanol

Step-by-step solution

Benzene in methanol breaks the H - bonding of the alcohol making its boiling point decrease & there by its vapour pressure increases leading two +ve deviation.

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