Chemistry · Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications
Which of the following units is correctly matched?
Which of the following units is correctly matched?
- A. SI units of conductivity is \( S m^{-1} \)
- B. \( S I \) units of molar conductivity is \( S \mathrm{cm}^{2} \mathrm{mol}^{-1} \)
- C. \( S I \) unit of conductance is \( S^{-1} \)
- D. All of these
Step-by-step solution
Conductivity SI unit is siemens per meter (S/m) as it is the reciprocal of resistivity (Ω·m). Option B uses cm which is not SI; option C incorrectly defines conductance as S^{-1} whereas it is S. Hence only A is correct.
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