i) The increase in the molar conductivity of electrolyte A on dilution suggests dissociation or ionization of the electrolyte into more ions, indicating its strong electrolyte behavior.
ii) The limiting molar conductivity for electrolyte B can be obtained by extrapolation at infinite dilution from the linear portion of the graph.
(i) The observed increase in the molar conductivity of electrolyte A upon dilution can be attributed to the enhanced dissociation or ionization of the electrolyte into its constituent ions. As the concentration decreases, more ions are available in the solution, leading to a rise in molar conductivity. This behavior is indicative of a strong electrolyte, where a greater degree of ionization occurs with dilution, resulting in increased electrical conductivity.
(ii) In the graph, the limiting molar conductivity for electrolyte B cannot be directly obtained from the plotted points due to limitations in the experimental concentration range. However, it can be determined by extrapolating the linear portion of the graph to infinite dilution. This extrapolation provides an estimate of the limiting molar conductivity, representing the maximum conductivity achievable when the electrolyte is fully dissociated. While the graph may not cover the entire dilution range, this method allows for the determination of the limiting molar conductivity for electrolyte B.