Q38 / 180 · COMEDK 2019 · Chemistry

Highest molar conductivity is given by

  • Correct answer
    A
    $0.005 \mathrm{M} \mathrm{NaCl}$
  • B
    $0.1 \mathrm{M} \mathrm{NaCl}$
  • C
    $0.05 \mathrm{M} \mathrm{NaCl}$
  • D
    $0.01 \mathrm{M} \mathrm{NaCl}$

Solution

Molar conductivity increases with decrease in concentration as the total volume, $(V)$ of a solution containing one mole of electrolyte also increases. $\therefore 0.005 \mathrm{M} \mathrm{NaCl}$ have highest molar conductivity.

Hence, the correct answer is option: 'A'.

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