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Need clarity, kindly explain! All form ideal solutions except

All form ideal solutions except

  • Option 1)

    C_{2} H_{5} Br  and  C_{2} H_{5} I

     

  • Option 2)

    C_{6} H_{5} Cl  and  C_{6} H_{5} Br

  • Option 3)

    C_{6} H_{6}   and   C_{6} H_{5} CH_{3}

  • Option 4)


    C_{2} H_{5} I   and  C_{2} H_{5}OH

 
Answers (1)
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As we learned

 

Ideal Solution -

Ideal solutions are those which obey Raoult's Law.

The total vapour pressure of binary mixture of miscible liquids behaving ideally is given by

P_{T}=P_{A}^{0}x_{A}+P_{B}^{0}x_{B}

where x_A and x_B are mole fraction of A and B in liquid phase.

 

- wherein

 

P_{A}^{0}\ and\ P_{B}^{0} are vapour pressures of pure liquids.

 

 C_{2}H_{5} I  and  C_{2}H_{5}OH   do not form ideal solution.


Option 1)

C_{2} H_{5} Br  and  C_{2} H_{5} I

 

Option 2)

C_{6} H_{5} Cl  and  C_{6} H_{5} Br

Option 3)

C_{6} H_{6}   and   C_{6} H_{5} CH_{3}

Option 4)


C_{2} H_{5} I   and  C_{2} H_{5}OH

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