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If 1m solution of benzoic acid in benzen...

If 1m solution of benzoic acid in benzene has a freezing point depression of `3.84 ^(@)C` . `(K_(f)=5.12^(@)C mol^(-1)`kg) and boiling point elevation of `2.53^(@)C(K_(b)` =`2.53^(@)C "mol"^(-1) kg)`, then select the correct statement/s :lt brgtstatement I : there are dimar formation when under =going freezing
Statement II : there are no change when undergoing boiling
Statement III : reverse of I and II ltbr. Statement IV : dimer formation in freezing and boiling state

A

I, II

B

II, III

C

III, I

D

only I

Text Solution

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The correct Answer is:
a
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Knowledge Check

  • An aqueous solution freezes at 1.186^(@)C ( K_(f)=1.86,K_(b)=0.512 ). What is the elevation in boiling point?

    A
    0.186
    B
    0.512
    C
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    D
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