Question

The variation of molar conductivity with concentration of an electrolyte X in aqueous solution as shown in figure.

• A. $\mathrm{HCl}$
• B. ${\mathrm{CH}}_3\mathrm{COOH}$
• C. $\mathrm{NaCl}$
• D. ${\mathrm{KNO}}_3$

Answer 1

The correct option is B

${\mathrm{CH}}_3\mathrm{COOH}$

Explanation for the correct option:

B: ${\mathrm{CH}}_3\mathrm{COOH}$

Weak Electrolyte:

• An electrolyte is a material that dissociates into charged particles known as ions when it comes into contact with water.
• Cations are ions that have a positive charge.
• Anions are ions that have a negative charge.
• In other terms, an electrolyte is a substance that, when melted or dissolved in water, may conduct an electric current.
• A weak electrolyte is a partly ionised electrolyte.
• The electrical conductivity of these electrolytes is modest, and the ionisation extend is limited.
• This type of variation is for weak electrolyte.
• Methyl Group with $\mathrm{COOH}$ makes this weak electrolyte

Final Answer: Therefore, the correct option is B, i.e. ${\mathrm{CH}}_3\mathrm{COOH}$.