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When 20 g of naphthoic acid (C2H8O2) is ...

When 20 g of naphthoic acid `(C_2H_8O_2)` is dissolved in 50 gofbenzene `(K_f "=1.72 K kg mol"^(-1)),` a freezing point depression of 2 K is observed. The van't Hoff factor (i) is

A

0.5

B

1

C

2

D

3

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