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97. 8g of NaOH is dissolved in 18 g of

H2 O. Mole fraction  of NaOH in solution and molality of the solutions respectively are :

a. 0.2, 11. 11

b. 0.167, 11. 11

c. 0.167, 22. 20

d. 0.2, 22.20

Ans. b

(9)

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