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A graph was plotted between the molar co...

A graph was plotted between the molar conductance of various electrolytes `(HCI, KCI` and `CH_(3)COOH)` and root of their concentrations in molar per litre.

Which of the following is correct match?

A

`I (CH_(3)COOH), II (KCI), II(HCI)`

B

`I(HCI), II(KCI), II (CH_(3)COOH)`

C

`I(CH_(3)COOH), II (HCI), II (KCI)`

D

`I(KCI), II(CH_(3)COOH), II (HCI)`

Text Solution

Verified by Experts

The correct Answer is:
B
Molar conductance of `HCI` will be maximum and `CH_(3)COOH` will be minimum
because
(i) `[H^(+)]` have expectional ionic mobility
(ii) `CH_(3)COOH` is a weak electrolyte
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  • The variation in Lambda_m with concentration for a strong electrolyte can be represented by the equation, Lambda_m=Lambda_m^@ -AC^(1//2) The value of constant A for a given solvent and temperature depends upon the type of electrolyte i.e., cations and anions produced on dissociation of electrolyte in the solution . Which of the following statements is correct regarding variations of molar conductivity with concentration.

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