For an ideal solution of two components $A$ and $B$,which of the following is true?

  • A
    $\Delta H_{mixing} < 0$
  • B
    $\Delta H_{mixing} > 0$
  • C
    $A-B$ interaction is stronger than $A-A$ and $B-B$ interactions
  • D
    $A-A, B-B$ and $A-B$ interactions are identical

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