Verified Solution • 2025–26 Session moderate

QNEET-2023-Ch-206: NEET 2023 Chemistry - Class 12 NEET-2023-Ch-206 Solution: The conductivity of centimolar solution of KCl at \(25^ C\) is…

The conductivity of centimolar solution of KCl at 25∘C25^\circ C is 0.0210 ohm−1 cm−10.0210\ \text{ohm}^{-1}\ \text{cm}^{-1} and the resistance of the cell containing the solution at 25∘C25^\circ C is 60 ohm. The value of cell constant is - 3.28 cm−1\text{cm}^{-1} 1.26 cm−1\text{cm}^{-1} 3.34 cm−1\text{cm}^{-1} 1.34 cm−1\text{cm}^{-1}

Multiple Choice Options

  • A 3.28 cm−13.28 \mathrm{~cm}^{-1} 3.28   cm _ 1
  • B 1.26 cm−11.26 \mathrm{~cm}^{-1} 1.26   cm _ 1
  • C 3.34 cm−13.34 \mathrm{~cm}^{-1} 3.34   cm _ 1
  • D 1.34 cm−11.34 \mathrm{~cm}^{-1} 1.34   cm _ 1

Step-by-Step Verified Solution

Centimolar solution = 1 100 M = 0.01   M Conductivity ( k ) = 0.0210   ohm _ 1   cm _ 1 Resistance ( R ) = 60   ohm k = 1 R ( _ A ) _ 0.0210 = 1 60 ( _ A ) _ _ A = 1.26   cm _ 1

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