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Phenol dimerizes in benzene having van’t Hoff factor 0.54. What is the degree of association? - Chemistry

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प्रश्न

Phenol dimerizes in benzene having van’t Hoff factor 0.54. What is the degree of association?

विकल्प

  • 0.46

  • 92

  • 46

  • 0.92

MCQ
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उत्तर

0.92

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अध्याय 9: Solutions - Evaluation [पृष्ठ ६३]

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सामाचीर कलवी Chemistry - Volume 1 and 2 [English] Class 11 TN Board
अध्याय 9 Solutions
Evaluation | Q I. 29. | पृष्ठ ६३

संबंधित प्रश्न

19.5 g of CH2FCOOH is dissolved in 500 g of water. The depression in the freezing point of water observed is 1.0°C. Calculate the van’t Hoff factor and dissociation constant of fluoroacetic acid.


How van’t Hoff factor is related to the degree of dissociation?


Give reasons for the following

Elevation of the boiling point of 1 M KCl solution is nearly double than that of 1 M sugar solution.


 Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following: 
CH3COOH dissolved in water 


The Van't Hoff factor (i) for a dilute aqueous solution of the strong elecrolyte barium hydroxide is (NEET) ______.


The freezing point depression constant for water is 1.86° K Kg mol-1. If 5 g Na2SO4 is dissolved in 45 g water, the depression in freezing point is 3.64°C. The Vant Hoff factor for Na2SO4 is ______.


When 9.45 g of ClCH2COOH is added to 500 mL of water, its freezing point drops by 0.5°C. The dissociation constant of ClCH2COOH is x × 10−3. The value of x is ______. (Rounded-off to the nearest integer)

[\[\ce{K_{f(H_2O)}}\] = 1.86 K kg mol−1]


A storage battery contains a solution of H2SO4 38% by weight. At this concentration, Van't Hoff Factor is 2.50. At the battery content freeze temperature will be ______ K.

(Kf = 1.86 K Kg mol−1)


The degree of dissociation of Ca(NO3)2 in a dilute aqueous solution containing 7 g of the salt per 100 g of water at 100°C is 70%. If the vapour pressure of water at 100°C is 760 mm. The vapour pressure of the solution is ______ mm.


A molecule M associates in a given solvent according to the equation \[\ce{M <=> (M)_n}\]. For a certain concentration of M, the van't Hoff factor was found to be 0.9 and the fraction of associated molecules was 0.2. The value of n is ______.


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