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A 0.2 molal aqueous solution of weak aci...

A 0.2 molal aqueous solution of weak acid (HX) is 20% ionised. The freezing point of this solution is (Given, `K_(f) = 1.86^(@) C m^(-1)` for water)

A

`-0.45^(@)C`

B

`-0.55^(@) C`

C

`-0.90^(@)C`

D

`-0.31^(@)C`

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A 0.2 molal aqueous solution of a week acid (HX) is 20 % ionised,The frrezing point of this solution is (Given k_(f)=1.86^(@)Ckg mol^(-1) for water) :

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If 0.2 molal aqueous solution of a weak acid (HA) is 40% ionised then the freezing point of the solution will be ( K_f for water = 1.86^@ C

In a 0.2 molal aqueous solution of weak acid HX (the degree of dissociation 0.3 ) the freezing point is (given K_(f) = 1.85 K molality^(-1) ):

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