Resistance of 0.2 M solution of an electrolyte is 50

Question:

Resistance of $0.2 \mathrm{M}$ solution of an electrolyte is $50 \Omega$. The specific conductance of the solution is $1.3 \mathrm{~S} \mathrm{~m}^{-1}$. If resistance of the $0.4 \mathrm{M}$ solution of the same electrolyte is $260 \Omega$, its molar conductivity is :-

  1. $6250 \mathrm{~S} \mathrm{~m}^{2} \mathrm{~mol}^{-1}$

  2. $6.25 \times 10^{-4} \mathrm{~S} \mathrm{~m}^{2} \mathrm{~mol}^{-1}$

  3. $625 \times 10^{-4} \mathrm{~S} \mathrm{~m}^{2} \mathrm{~mol}^{-1}$

  4. $62.5 \mathrm{~S} \mathrm{~m}^{2} \mathrm{~mol}^{-1}$

Correct Option: , 2

Solution:

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