0.2 molal aqueous solution of an electrolyte A,B is 90% ionised. The boiling point of the solution at 1 atm is : (K, for H,O = 0.52K Kg %3D mol & boiling point of H,O = 373 K) (1) 273.19 K (2) 374.92 K (3) 376.4 K (4) 373.38 K

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