NEET2019ChemistryElectrochemistryActual
Following limiting molar conductivities are given as given as aligned & _ m ( H ₂ SO ₄ ) ^0= x S cm ^2 ~mol ⁻¹ & _ m ( K ₂ SO ₄ ) ^0= y S cm ^2 ~mol ⁻¹ & aligned _ m ( CH ₂ COOK ) ^0= Z S cm ^2 ~mol ⁻¹
Options
- Ax-y+2 z
- Bx+y-z
- Cx-y+z
- D(x-y) 2 +z
Correct answer
D. (x-y) 2 +z
Step-by-step solution
Key Idea According to Kohlrausch's law, _m^0 for A_x B_y=x _ (A)⁰⁺ ^0+y _ (B)^ x- where, _m^ = limiting molar conductivity of electrolyte and _ (A)^ y+ ^0 and _ (B)^ x- ^0 are the limiting molar conductivities of cation (A^ y+ ) and anion (B^ x- ) , respectively.