If two compounds are given then how we will be able to know whether its ideal solution, non ideal solution of positive deviation or non ideal solution of negative solution....is there any trick thn plz share.

Dear student,

There are specific examples for these cases and you have to remember all those examples because the question is asked directly from the examples. 

Examples of ideal solutions are- 
  • n-hexane and n-heptane
  • Bromoethane and Chloroethane
  • Benzene and Toluene
  • CCl4 and SiCl4
  • Chlorobenzene and Bromobenzene
  • Ethyl Bromide and Ethyl Iodide
  • n-Butyl Chloride and n-Butyl Bromide
Examples of nonideal solutions showing positive deviations are- 
  • Acetone and Carbon disulfide
  • Acetone and Benzene 
  • Carbon Tetrachloride and Toluene or Chloroform
  • Methyl Alcohol and Water
  • Acetone and ethanol
  • Ethanol and Water
Examples of nonideal solutions showing negative deviations are- 
  • Chloroform and Benzene
  • Chloroform and Diether
  • Acetone and Aniline
  • Nitric Acid ( HNO3) and water
  • Acetic Acid and pyridine
  • Hydrochloric Acid ( HCl) and water

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