Coagulation value of the electrolytes `AlCl_(3)` and NaCl for `As_(2)S_(3)` sol are 0.093 and 52 respectively. How many times `AlCl_(3)` has greater coagulating power than NaCl?
A. 930
B. 520
C. 560
D. None of these
Correct Answer - C
`("coagulation power of"AlCl_3)/("coagulation power of"NaCl)=("coagulation value of"NaCl)/("coagulation value of"AlCl_3)=52/0.093~~560`
Correct Answer - C
Correct reason. It is due to the adsorption of the `S^(2-)` ions on the surface of the colloidal particles and `H^(+)` ions in the diffused layer.
Correct Answer - C
Correct reason. On mixing `Fe(OH)_(3)` (-ve sol) and `As_(2)S_(3)` (-ve sol) nutual coagulation occurs leading to a precepitation. No new compound is formed.
Correct Answer - C
10 ml of 1 M NaCl contains NaCl =10 x1=10 milli mole
200 ml of `As_2S_3` required NaCl for the coagulation =10 milli mole
`:.` 1000 ml...