1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statement

A
Values of colligative properties of colloidal solution are of small order compared to values of true solution.
B
Tyndall effect is observed only when diameter of the dispersed particles is not much smaller than wavelength of incident light.
C
Colour of colloidal solution depends on the wavelength of light scattered by the dispersed particles.
D
Brownian movement is due to balanced bombardment of molecules of dispersion medium on colloidal particles.
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

For the coagulations of positively charged hydrated ferric - oxide sol, the flocculating power of the ions is in the order:

A
$\mathrm{PO}_4^{3-}>\mathrm{SO}_4^{2-}>\mathrm{Cl}^{-}>\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
B
$\mathrm{Cl}^{-}>\mathrm{SO}_4^{2-}>\mathrm{PO}_4^{3-}>\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
C
$\mathrm{SO}_4^{2-}=\mathrm{Cl}^{-}=\mathrm{PO}_4^{3-}=\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
D
$\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}>\mathrm{PO}_4^{3-}>\mathrm{SO}_4^{2-}>\mathrm{Cl}^{-}$
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Gold sol is not a

A
macromolecular colloid
B
lyophobic colloid
C
multimolecular colloid
D
negatively charged colloid
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Aqueous solution of raw sugar when passed over beds of animal charcoal, it becomes colourless. Pick the correct set of terminologies that can be used for the above example.

A
Adsorbent Adsorbate Process
Solution of sugar Animal charcoal Sorption
B
Adsorbent Adsorbate Process
Animal charcoal Solution of sugar Absorption
C
Adsorbent Adsorbate Process
Animal charcoal Colouring substance Adsorption
D
Adsorbent Adsorbate Process
Colouring substance Animal charcoal Adsorption
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