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1
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
$\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}>\mathrm{PO}_4^{3-}>\mathrm{SO}_4^{2-}>\mathrm{Cl}^{-}$
2
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
3
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
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

For Freundlich adsorption isotherm, a graph of $$\log (x / m)$$ vs $$\log (p)$$ gives a straight line. The slope of line and its $$Y$$-axis intercept respectively are

A
$$\log \left(\frac{1}{n}\right) k$$
B
$$\frac{1}{n}, \log k$$
C
$$\log \left(\frac{1}{n}\right), \log k$$
D
$$\frac{1}{n}, k$$
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