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21. The solution containing 4.0gm of a polyvinyl chloride polymer in 1 liter of dioxane was found to have an osmotic pressure

6.0 x 10 -4  atmosphere at 300K, the value of R used is 0.082 litre atmosphere  K . The molecular -1  K -1 mass of polymer was found to be

a. 3.0 x 102

b. 1.6 x 10 5

c. 5.6 x 104

d. 6.4 x 102

Ans. b

 

(7)

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