For ultrafiltration, ordinary filter paper is impregnated in a solutio

1.	For ultrafiltration, ordinary filter paper is impregnated in a solution of
A.	Collodian
B.	Starch
C.	Gum
D.	Silicic acid
Answer» B. Starch

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For ultrafiltration, ordinary filter paper is impregnated in a solution of

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