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1
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is a first step in mechanism of heterogenous catalysis?

A
Desorption of reaction product from catalyst surface
B
Adsorption of reactant molecules on catalyst
C
Occurrence of chemical reaction on catalyst surface to form an intermediate
D
Diffusion of reactants towards catalyst surface
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is true for adsorption?

A
It is accompanied by evolution of heat.
B
It is a bulk phenomenon.
C
It is independent of surface area.
D
It is independent of temperature.
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the value of intercept on $$y$$-axis when $$\log \frac{x}{m}$$ is plotted against $$\log P$$ in Freundlich isotherm?

A
$$\frac{1}{n}$$
B
$$\log k$$
C
n
D
$$\mathrm{k}$$
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct decreasing order of precipitation power of flocculating ion added, from following.

A
$$\mathrm{Al}^{3+}>\mathrm{Na}^{+}>\mathrm{Ba}^{2+}$$
B
$$\mathrm{Ba}^{2+}>\mathrm{Al}^{3+}>\mathrm{Na}^{+}$$
C
$$\mathrm{Al}^{3+}>\mathrm{Ba}^{2+}>\mathrm{Na}^{+}$$
D
$$\mathrm{Na}^{+}>\mathrm{Ba}^{2+}>\mathrm{Al}^{3+}$$
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