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1
JEE Main 2021 (Online) 26th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
The nature of charge on resulting colloidal particles when FeCl3 is added to excess of hot water is :
A
neutral
B
sometimes positive and sometimes negative
C
positive
D
negative
2
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is FALSE for hydrophilic sols?
A
They do not require electrolytes for stability.
B
The sols cannot be easily coagulated.
C
These sols are reversible in nature.
D
Their viscosity is of the order of that of H2O.
3
JEE Main 2021 (Online) 25th February Morning Slot
MCQ (Single Correct Answer)
+4
-1
In Freundlich adsorption isotherm at moderate pressure, the extent of adsorption $$\left( {{x \over m}} \right)$$ is directly proportional to Px. The value of x is :
A
$$\infty $$
B
zero
C
1
D
$${{1 \over n}}$$
4
JEE Main 2021 (Online) 24th February Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In Freundlich adsorption isotherm, slope of AB line is :

JEE Main 2021 (Online) 24th February Morning Slot Chemistry - Surface Chemistry Question 53 English
A
$${1 \over n}$$ with $$\left( {{1 \over n} = 0\,to\,1} \right)$$
B
n with (n, 0.1 to 0.5)
C
$$\log {1 \over n}$$ with $$\left( {n < 1} \right)$$
D
log n with (n > 1)
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