Which mixture of the solutions will lead to the formation of negatively charged colloidal `[Agl]^(-)` sol. ?

Options

A. 50 ml of 0.1M `AgNO_(3)` +50 mL of 0.1 M Kl
B. 50 mL of 1M `AgNO_(3)+`50 mL of 1.5 M Kl
C. 50 mL of 1 M `AgNO_(3)`+50mL of 2M Kl
D. 50 mL of 2M `AgNO_(3)`+ 50mL of 1.5 M Kl

Answer

B

Explanation

In compare of 1.5 M Kl is conc solution and Ln 2M Kl solution extra `K^(+)` ion can lead coagulation so better option is 1.5 M Kl