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Colloidal gold is given by injection to act as

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Important Questions on Surface Chemistry

EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Which property of colloids is not dependent on the charge on colloidal particles?
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Which mixture of the solutions will lead to the formation of negatively charged colloidal AgII- sol?
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Among the following, the incorrect statement about colloids is:
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Write any two differences between lyophilic and lyophobic colloids.
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
The coagulating power of electrolytes having ions Na+,  Al3+ and Ba2+ for arsenic sulphide sol increases in the order,
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Measuring Zeta potential is useful in determining which property of colloidal solution?
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
The correct option among the following is.
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Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
A sol of Agl is prepared by mixing equal volumes of 0.1 M AgNO3 and 0.2 M Kl, which of the following statement is correct?
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Which property of colloidal solution is independent of charge on the colloidal particles?
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
The Tyndall effect is observed only when the following conditions are satisfied,

i The diameter of the dispersed particles is much smaller than the wavelength of the light used.

ii The diameter of the dispersed particle is not much smaller than the wavelength of the light used.

iii The refractive indices of the dispersed phase and dispersion medium are almost similar in magnitude.

iv The refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Why are lyophilic colloids used as protective colloids?
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
For coagulation of arsenious sulphide sol, which of the following salt solutions will be most effective?
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
 Gold numbers of protective colloids A, B, C and D are. 0.50,0.01,0.10 and 0.005 Respectively. The correct order of their protective powers is
 
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order:
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
During electro-osmosis of FeOH3 sol,
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
The phenomenon of Tyndall effect is not observed in
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Which of the following has the highest coagulating power for As2S3 colloid?
MEDIUM
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Among the following, the correct statement is:
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
Among the following, the false statement is:
EASY
Chemistry>Physical Chemistry>Surface Chemistry>Properties of Colloidal Solutions
The haemoglobin and the gold sol are examples of