KCET2018ChemistrySurface Chemistry
Which of the following electrolytes will have maximum coagulating value for ( Agl / Ag ⁺ sol ) ?
Options
- A( Na ₂ ~S )
- B( Na ₃ PO ₄ )
- C( Na ₂ SO ₄ )
- D( NaCl )
Correct answer
B. ( Na ₃ PO ₄ )
Step-by-step solution
According to Hardy-Schulze Rule, The greater the valence, the greater is its power to cause coagulation. ( So ₄ PO ₄ ³⁻> SO ₄ ²⁻> S ²⁻> Cl ⁻ )