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WBJEE 2021 Physics and Chemistry Solved Paper

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CHEMISTRY
CATEGORY - I (Q41 to Q70)
Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.
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Question : 52 of 80
 
Marks: +1, -0
When 20g of naphthoic acid (C10H8O2) is dissolved in 50g of benzene, a freezing point depression of 2K is observed.
The vant Hoff factor (i) is [Kf=1.72Kkg mol−1]
Validate
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