Resistance of an aqueous solution containing 2 moles NH₄Cl and completely filled in between two electrodes which are 20cm apart was found to be 100 ohm. The molar conductivity of NH₄Cl (in ohm^-1 cm² mol^-1) is

Option 1 - 2.0

Option 2 - 1.25

Option 3 - 2.50

Option 4 - 3.80

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Vishal Baghel | Contributor-Level 10

5 months ago

Correct Option - 1

Detailed Solution:

$G \frac{l}{a} = κ$ .1

$Λ_{m} = κ * \frac{1000}{n / (l * a) * 1 0^{- 3}}$ .2

from (1) & (2) $Λ_{m} = 2 Ω^{- 1} - c m^{2} - m o l^{- 1}$

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