Q 1114501459.     A solution of `10g` of a non volatile binary electrolyte `(Mol wt = 100)` in `500g` of water freezes at `-0.74``^@C`. What is the degree of ionisation.

(`K_f` of water = `1.85Kmolality^-1`)

A

`50%`

B

`75%`

C

` 100%`

D

`0%`

HINT

Use formula: `Delta T_f` = `K_fxxmxx i`

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