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4. The vapour pressure of water at

20° C is 17.5 mmHg. if 18 g of glucose is added to 178.2 g of water at 20° C   the vapour pressure of the resulting solution will be

a. 15.750 mm Hg

b. 16.500 mm Hg

c. 17.325 mm Hg

d. 17.675 mm Hg

Ans. c

(18)

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