Which one of the following 0.10 M aqueous solutions will exhibit the largest freezing point depression?

Option 1 - glucose

Option 2 - hydrazine

Option 3 - glycine

Option 4 - KHSO4

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Answered by

Raj Pandey | Contributor-Level 9

8 months ago

Correct Option - 4

Detailed Solution:

$Δ T_{f} = i K_{f} m$

Higher the value of i, more be $Δ T_{f} .$

Glucose →i = 1

Hydrazine → I = 1

Glycine → I = 1

KHSO₄ → I = 3 $(K^{+} H^{+} S O_{4}^{- -})$

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Kindly consider the following Image

When 12.2g of benzoic acid is dissolved in 100g of water, the freezing point of solution was found to be -0.93°C $[K_{f} (H_{2} O = 1.86 K k g m o l^{- 1}] .$  The number (n) of benzoic acid molecules associated (assuming 100% association) is…………,

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