Measurement of the Conductivity
CHXII03:ELECTROCHEMISTRY

330387 If resistivity of 0.8 M KCl solution is \({\rm{2}}{\rm{.5 \times 1}}{{\rm{0}}^{{\rm{ - 3}}}}{\rm{ohm}}\,\,{\rm{cm}}\). The molar conductivity of solution is

1 \({\rm{2 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{5 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{4 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{3 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330388 The resistance of \(0.5 \mathrm{M}\) solution of an electrolyte in a cell was found to be \(50 \Omega\). If the electrodes in the cell are \(2.2 \mathrm{~cm}\) apart \({\rm{\& }}\) having an area of \(4.4 \mathrm{~cm}^{2}\), then the molar conductivity (in \(\mathrm{Sm}^{2} \mathrm{~mol}^{-1}\) ) of solution is:

1 0.2
2 0.02
3 0.002
4 None of these
CHXII03:ELECTROCHEMISTRY

330389 What is the conductivity of \({\text{0}}{\text{.02}}\,\,{\text{M HCl}}\) solution if molar conductivity of the solution at \(25^{\circ} \mathrm{C}\) is \(412.3 \Omega^{-1} \mathrm{~cm}^{-1} \mathrm{~mol}^{-1}\) ?

1 \(8.880 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
2 \(8.414 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
3 \(8.624 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(8.246 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330390 Resistance of 0.2 M solution of an electrolyte is \({\rm{50}}\,\,{\rm{\Omega }}\). The specific conductance of the solution is \({\rm{1}}{\rm{.3}}\,\,{\rm{S}}\,\,{{\rm{m}}^{{\rm{ - 1}}}}\). If resistance of the 0.4 M solution
of the same electrolyte is \({\rm{260}}\,\,{\rm{\Omega }}\), its molar conductivity is

1 \({\rm{62}}{\rm{.5}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{625 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{6}}{\rm{.25 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{6250}}{\mkern 1mu} \,{\mkern 1mu} {\rm{S}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330391 Molar conductivity of \({\text{0}}{\text{.04}}\,\,{\text{M BaC}}{{\text{l}}_{\text{2}}}\) solution is \(230 \Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) at \(27^{\circ} \mathrm{C}\). What is it's conductivity?

1 \(2.3 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
2 \(9.2 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
3 \(6.9 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(4.6 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330387 If resistivity of 0.8 M KCl solution is \({\rm{2}}{\rm{.5 \times 1}}{{\rm{0}}^{{\rm{ - 3}}}}{\rm{ohm}}\,\,{\rm{cm}}\). The molar conductivity of solution is

1 \({\rm{2 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{5 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{4 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{3 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330388 The resistance of \(0.5 \mathrm{M}\) solution of an electrolyte in a cell was found to be \(50 \Omega\). If the electrodes in the cell are \(2.2 \mathrm{~cm}\) apart \({\rm{\& }}\) having an area of \(4.4 \mathrm{~cm}^{2}\), then the molar conductivity (in \(\mathrm{Sm}^{2} \mathrm{~mol}^{-1}\) ) of solution is:

1 0.2
2 0.02
3 0.002
4 None of these
CHXII03:ELECTROCHEMISTRY

330389 What is the conductivity of \({\text{0}}{\text{.02}}\,\,{\text{M HCl}}\) solution if molar conductivity of the solution at \(25^{\circ} \mathrm{C}\) is \(412.3 \Omega^{-1} \mathrm{~cm}^{-1} \mathrm{~mol}^{-1}\) ?

1 \(8.880 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
2 \(8.414 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
3 \(8.624 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(8.246 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330390 Resistance of 0.2 M solution of an electrolyte is \({\rm{50}}\,\,{\rm{\Omega }}\). The specific conductance of the solution is \({\rm{1}}{\rm{.3}}\,\,{\rm{S}}\,\,{{\rm{m}}^{{\rm{ - 1}}}}\). If resistance of the 0.4 M solution
of the same electrolyte is \({\rm{260}}\,\,{\rm{\Omega }}\), its molar conductivity is

1 \({\rm{62}}{\rm{.5}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{625 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{6}}{\rm{.25 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{6250}}{\mkern 1mu} \,{\mkern 1mu} {\rm{S}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330391 Molar conductivity of \({\text{0}}{\text{.04}}\,\,{\text{M BaC}}{{\text{l}}_{\text{2}}}\) solution is \(230 \Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) at \(27^{\circ} \mathrm{C}\). What is it's conductivity?

1 \(2.3 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
2 \(9.2 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
3 \(6.9 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(4.6 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330387 If resistivity of 0.8 M KCl solution is \({\rm{2}}{\rm{.5 \times 1}}{{\rm{0}}^{{\rm{ - 3}}}}{\rm{ohm}}\,\,{\rm{cm}}\). The molar conductivity of solution is

1 \({\rm{2 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{5 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{4 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{3 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330388 The resistance of \(0.5 \mathrm{M}\) solution of an electrolyte in a cell was found to be \(50 \Omega\). If the electrodes in the cell are \(2.2 \mathrm{~cm}\) apart \({\rm{\& }}\) having an area of \(4.4 \mathrm{~cm}^{2}\), then the molar conductivity (in \(\mathrm{Sm}^{2} \mathrm{~mol}^{-1}\) ) of solution is:

1 0.2
2 0.02
3 0.002
4 None of these
CHXII03:ELECTROCHEMISTRY

330389 What is the conductivity of \({\text{0}}{\text{.02}}\,\,{\text{M HCl}}\) solution if molar conductivity of the solution at \(25^{\circ} \mathrm{C}\) is \(412.3 \Omega^{-1} \mathrm{~cm}^{-1} \mathrm{~mol}^{-1}\) ?

1 \(8.880 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
2 \(8.414 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
3 \(8.624 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(8.246 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330390 Resistance of 0.2 M solution of an electrolyte is \({\rm{50}}\,\,{\rm{\Omega }}\). The specific conductance of the solution is \({\rm{1}}{\rm{.3}}\,\,{\rm{S}}\,\,{{\rm{m}}^{{\rm{ - 1}}}}\). If resistance of the 0.4 M solution
of the same electrolyte is \({\rm{260}}\,\,{\rm{\Omega }}\), its molar conductivity is

1 \({\rm{62}}{\rm{.5}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{625 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{6}}{\rm{.25 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{6250}}{\mkern 1mu} \,{\mkern 1mu} {\rm{S}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330391 Molar conductivity of \({\text{0}}{\text{.04}}\,\,{\text{M BaC}}{{\text{l}}_{\text{2}}}\) solution is \(230 \Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) at \(27^{\circ} \mathrm{C}\). What is it's conductivity?

1 \(2.3 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
2 \(9.2 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
3 \(6.9 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(4.6 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII03:ELECTROCHEMISTRY

330387 If resistivity of 0.8 M KCl solution is \({\rm{2}}{\rm{.5 \times 1}}{{\rm{0}}^{{\rm{ - 3}}}}{\rm{ohm}}\,\,{\rm{cm}}\). The molar conductivity of solution is

1 \({\rm{2 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{5 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{4 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{3 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330388 The resistance of \(0.5 \mathrm{M}\) solution of an electrolyte in a cell was found to be \(50 \Omega\). If the electrodes in the cell are \(2.2 \mathrm{~cm}\) apart \({\rm{\& }}\) having an area of \(4.4 \mathrm{~cm}^{2}\), then the molar conductivity (in \(\mathrm{Sm}^{2} \mathrm{~mol}^{-1}\) ) of solution is:

1 0.2
2 0.02
3 0.002
4 None of these
CHXII03:ELECTROCHEMISTRY

330389 What is the conductivity of \({\text{0}}{\text{.02}}\,\,{\text{M HCl}}\) solution if molar conductivity of the solution at \(25^{\circ} \mathrm{C}\) is \(412.3 \Omega^{-1} \mathrm{~cm}^{-1} \mathrm{~mol}^{-1}\) ?

1 \(8.880 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
2 \(8.414 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
3 \(8.624 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(8.246 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330390 Resistance of 0.2 M solution of an electrolyte is \({\rm{50}}\,\,{\rm{\Omega }}\). The specific conductance of the solution is \({\rm{1}}{\rm{.3}}\,\,{\rm{S}}\,\,{{\rm{m}}^{{\rm{ - 1}}}}\). If resistance of the 0.4 M solution
of the same electrolyte is \({\rm{260}}\,\,{\rm{\Omega }}\), its molar conductivity is

1 \({\rm{62}}{\rm{.5}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{625 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{6}}{\rm{.25 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{6250}}{\mkern 1mu} \,{\mkern 1mu} {\rm{S}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330391 Molar conductivity of \({\text{0}}{\text{.04}}\,\,{\text{M BaC}}{{\text{l}}_{\text{2}}}\) solution is \(230 \Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) at \(27^{\circ} \mathrm{C}\). What is it's conductivity?

1 \(2.3 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
2 \(9.2 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
3 \(6.9 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(4.6 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330387 If resistivity of 0.8 M KCl solution is \({\rm{2}}{\rm{.5 \times 1}}{{\rm{0}}^{{\rm{ - 3}}}}{\rm{ohm}}\,\,{\rm{cm}}\). The molar conductivity of solution is

1 \({\rm{2 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{5 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{4 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{3 \times 1}}{{\rm{0}}^{\rm{5}}}{\rm{oh}}{{\rm{m}}^{{\rm{ - 1}}}}\,\,{\rm{c}}{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330388 The resistance of \(0.5 \mathrm{M}\) solution of an electrolyte in a cell was found to be \(50 \Omega\). If the electrodes in the cell are \(2.2 \mathrm{~cm}\) apart \({\rm{\& }}\) having an area of \(4.4 \mathrm{~cm}^{2}\), then the molar conductivity (in \(\mathrm{Sm}^{2} \mathrm{~mol}^{-1}\) ) of solution is:

1 0.2
2 0.02
3 0.002
4 None of these
CHXII03:ELECTROCHEMISTRY

330389 What is the conductivity of \({\text{0}}{\text{.02}}\,\,{\text{M HCl}}\) solution if molar conductivity of the solution at \(25^{\circ} \mathrm{C}\) is \(412.3 \Omega^{-1} \mathrm{~cm}^{-1} \mathrm{~mol}^{-1}\) ?

1 \(8.880 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
2 \(8.414 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
3 \(8.624 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(8.246 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
CHXII03:ELECTROCHEMISTRY

330390 Resistance of 0.2 M solution of an electrolyte is \({\rm{50}}\,\,{\rm{\Omega }}\). The specific conductance of the solution is \({\rm{1}}{\rm{.3}}\,\,{\rm{S}}\,\,{{\rm{m}}^{{\rm{ - 1}}}}\). If resistance of the 0.4 M solution
of the same electrolyte is \({\rm{260}}\,\,{\rm{\Omega }}\), its molar conductivity is

1 \({\rm{62}}{\rm{.5}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
2 \({\rm{625 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
3 \({\rm{6}}{\rm{.25 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}\,\,{\rm{S}}\,\,{{\rm{m}}^{\rm{2}}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
4 \({\rm{6250}}{\mkern 1mu} \,{\mkern 1mu} {\rm{S}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
CHXII03:ELECTROCHEMISTRY

330391 Molar conductivity of \({\text{0}}{\text{.04}}\,\,{\text{M BaC}}{{\text{l}}_{\text{2}}}\) solution is \(230 \Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) at \(27^{\circ} \mathrm{C}\). What is it's conductivity?

1 \(2.3 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
2 \(9.2 \times {10^{ - 3}}{\Omega ^{ - 1}}\;{\text{c}}{{\text{m}}^{ - 1}}\)
3 \(6.9 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)
4 \(4.6 \times 10^{-3} \Omega^{-1} \mathrm{~cm}^{-1}\)