The variation of molar conductivity with concentration of an electrolyte (X) in aqueous solution is shown in the given figure.

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${KNO}_{3}$

HCl

NaCl

${CH}_{3} COOH$

answer is B.

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Detailed Solution

While plotting graph between molar conductivity and $\sqrt{C}$ , a hyperbola curve is obtained in case of weak electrolyte whereas a straight line is observed in case of strong electrolyte.

In the given options, only ${CH}_{3} COOH$ is weak electrolyte. Therefore, (B) is the correct option.

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