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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

In case of weak electrolyte the graph Λ vs c is

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प्रश्न

In case of weak electrolyte the graph Λ vs `sqrt"c"` is _______.

पर्याय

  • linear

  • not linear

  • straight line passing from origin

  • curved

MCQ
रिकाम्या जागा भरा
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उत्तर

In case of weak electrolyte the graph Λ vs `sqrt"c"` is not linear.

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पाठ 5: Electrochemistry - Multiple choice questions

संबंधित प्रश्‍न

Choose the most correct option.

Two solutions have the ratio of their concentrations 0.4 and ratio of their conductivities 0.216. The ratio of their molar conductivities will be ______.


What is a cell constant? What are its units? How is it determined experimentally?


Answer the following in brief.

Explain the effect of dilution of the solution on conductivity.


Answer the following:

What is Kohlrausch law of independent migration of ions? How is it useful in obtaining molar conductivity at zero concentration of a weak electrolyte? Explain with an example.


Kohlrausch law is applicable for the solution _______.


Give SI unit of resistivity.


Write an equation that shows the relationship between molar conductivity and degree of dissociation of weak electrolyte.


Molar conductance of BaCl2, H2SO4 and HCl at infinite dilution are X1, X2 and X3 respectively. Molar conductance of BaSO4 at infinite dilution is ____________.


For the reaction \[\ce{A -> B}\], the rate increases by a factor of 2.25 when the concentration of A is increased by 1.5. What is the order of the reaction?


The resistance of `1/10`M solution is 2.5 × 103 ohm. What is the molar conductivity of solution? (cell constant = 1.25 cm-1).


The SI unit of resistivity and molar conductivity are respectively ____________.


The molar conductivities at infinite dilution for sodium acetate, HCI and NaCl are 91 S cm2 mol-1, 425.9 S cm2 mol-1 and 126.4 S cm2 mol-1 respectively. The molar conductivity of acetic acid at infinite dilution is ______.


What is the common unit of conductivity if the dimensions are expressed in centimeter?


In 2 hours, a certain current liberates 0.504 g hydrogen. How many grams of copper can be deposited by the same current flowing for the same time in a CuSO4 solution?

(Molar mass of Cu = 63.5 g mol−1, H2 = 2.0 g mol−1)


Which of the following graph represents the variation of `∧` with `sqrt"c"` for acetic acid solution?


A conductivity cell dipped in 0.01 M AgNO3 solution gives a resistance of 3160 ohms. If cell constant is 0.47 cm−1, what is the conductivity of AgNO3 solution?


What is the value of cell constant if conductance and conductivity of a solution is same?


What is the conductivity of 0.01 M NaCl solution if resistance and cell constant of NaCl solution are 375 ohms and 0.5 cm-1 respectively at 298 K?


A conductivity cell dipped in 0.5 M KCl gives a resistance of 250 ohms. If the conductivity of KC I solution is 6.68 × 10-3 S cm-1, what is the cell constant?


If the resistivity of 0.1 M KCI solution is 50 Ω cm, what is it's molar conductivity?


Which of the following has least conductivity in aqueous solution? 


A conductivity cell filled with 0.02 M AgNO3 gives at 25°C resistance of 947 ohms. If the cell constant is 2.3 cm-1, what is the molar conductivity of 0.02 M AgNO3 at 25°C?


Explain the determination of molar conductivity of a weak electrolyte at infinite dilution or zero concentration using Kohlrausch's law.


Write the relation between molar conductivity and molar ionic conductivities for the electrolytes:

  1. Na2SO4
  2. AlCl3

The resistance of a conductivity cell with cell constant 1.14 cm−1, containing 0.001 M KCl at 298 K is 1500 Ω. The molar conductivity of 0.001 MKCl solution at 298 K in S cm2 mol−1 is ______. (Integer answer)


When electric current is passed through acidified water, 112 mL of hydrogen gas at STP collected at the cathode in 965 seconds. The current passed in amperes is ______.


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