In mixture $A$ and $B$ components show $-\,ve$ deviation as

All form ideal solutions except

Which one of the following is incorrect for ideal solution ?

A liquid mixture contain $10\  moles$ of $A$  $(P_A^0= 200\ mm\  Hg)$ and $10\  moles$ of $B$  $( P_B^0 = 100\ mm\ Hg )$. The vapour pressure over liquid mixture is $160\  mm\  Hg$. Which is correct statement ?

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