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प्रश्न
Give reasons:
Conductivity of CH3COOH decreases on dilution.
Account for the following:
The conductivity of CH3COOH decreases on dilution.
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उत्तर
When acetic acid (CH3COOH) only partially ionizes when dissolved in water, it is referred to as a weak electrolyte. Even while the degree of ionization increases with dilution, the number of ions per unit volume drops. Dilution reduces overall conductivity, even as ionization increases, because conductivity depends on the concentration of free ions in the solution.
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संबंधित प्रश्न
Define conductivity for the solution of an electrolyte.
Give reasons:
On the basis of E° values, O2 gas should be liberated at anode but it is Cl2 gas which is liberated in the electrolysis of aqueous NaCl.
When measuring conductivity with a conductivity cell, cell constant denoted by the symbol G* is given by (electrode area of cross-section equal to ‘A’ and separated by distance ‘l’)
Conductivity of an electrolytic solution depends on:
(i) nature of electrolyte.
(ii) concentration of electrolyte.
(iii) power of AC source.
(iv) distance between the electrodes.
ConductivityK, is equal to:
(i) `1/R l/A`
(ii) `G^∗/R`
(iii) Λm
(iv) `l/A`
Assertion: For measuring resistance of an ionic solution an AC source is used.
Reason: Concentration of ionic solution will change if DC source is used.
The unit of equivalent conductivity is
Which of the following is not the characteristic of ionic solids?
The cell constant is the product of resistance and ______
The decreasing order of electrical conductivity of the following aqueous solutions is:
- 0.1 M Formic acid,
- 0.1 M Acetic acid,
- 0.1 M Benzoic acid.
