Electrochemistry · JEE Main previous year questions

2006 1 question

1. Q1192006 · 29 Apr 2006 · Shift 1

   Resistance of a conductivity cell filled with a solution of an electrolyte of concentration $0.1\mathrm{M}$ is $100\Omega$. The conductivity of this solution is $1.29\mathrm{S}{\mathrm{m}}^{-1}$. Resistance of the same cell when filled with $0.2\mathrm{M}$ of the same solution is $520\Omega$. The molar conductivity of $0.2\mathrm{M}$ solution of the electrolyte will be

   1. A.$124\times 10^{-4}\mathrm{S}{\mathrm{m}}^2\mathrm{mo}{\mathrm{l}}^{-1}$
   2. B.$1240\times 10^{-4}\mathrm{S}{\mathrm{m}}^2\mathrm{mo}{\mathrm{l}}^{-1}$
   3. C.$1.24\times 10^{-4}\mathrm{S}{\mathrm{m}}^2\mathrm{mo}{\mathrm{l}}^{-1}$
   4. D.$12.4\times 10^{-4}\mathrm{S}{\mathrm{m}}^2\mathrm{mo}{\mathrm{l}}^{-1}$
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   Answer: D