Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. Lambdam of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y?

Question

Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. Lambdam of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y? (A) X arrow NaCl, Y arrow KCl (B) X arrow NaCl, Y arrow CH3COOH (C) X arrow KOH, Y arrow NaOH (D) X arrow CH3COOH, Y arrow NaCl

Tardigrade Admin · Accepted Answer

Electrolyte X is strong electrolyte as on dilution the number of ions remains same, only interionic attraction decreases and hence not much increase in ∧m is seen. While Y is a weak electrolyte since, ∧m for a weak electrolyte like CH3COOH increases significantly on dilution.

Q. Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. $Λ_{m}$ of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y?

$X \to N a Cl, Y \to K Cl$

$X \to N a Cl, Y \to C H_{3} COO H$

$X \to K O H, Y \to N a O H$

$X \to C H_{3} COO H, Y \to N a Cl$

Q. Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. Λm​ of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y?

X→NaCl,Y→KCl

X→NaCl,Y→CH3​COOH

X→KOH,Y→NaOH

X→CH3​COOH,Y→NaCl

Electrolyte X is strong electrolyte as on dilution the number of ions remains same, only interionic attraction decreases and hence not much increase in ∧m​ is seen. While Y is a weak electrolyte since, ∧m​ for a weak electrolyte likeCH3​COOH increases significantly on dilution.

Q. Two solutions of X and Y electrolytes are taken in two beakers and diluted by adding 500 mL of water. $Λ_{m}$ of X increases by 1.5 times while that of Y increases by 20 times, what could be the electrolytes X and Y?

$X \to N a Cl, Y \to K Cl$

$X \to N a Cl, Y \to C H_{3} COO H$

$X \to K O H, Y \to N a O H$

$X \to C H_{3} COO H, Y \to N a Cl$