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When 20 g of naphthoic acid (C(11)H(8)O(...

When `20 g` of naphthoic acid `(C_(11)H_(8)O_(2))` is dissolved in `50 g` of benzene `(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

1

B

3

C

0.5

D

2

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The correct Answer is:
C
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When 20 g of naphthoic acid (C_(11)H_(8)O_(2)) is dissolved in 50 g of benzene ( K_(f) = 1.72 K "kg" mol^(-1) ) , a freezing point depression of 2K is observed . The van't Hoff factor (i) is :

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NTA MOCK TESTS-NTA NEET SET 36-CHEMISTRY
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