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1
JEE Main 2019 (Online) 10th January Morning Slot
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Which of the following is not an example of heterogenous catalytic reaction?
A
Ostwald's process
B
Combustion of coal
C
Hydrogenation of vegetable oils
D
Haber's process
2
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
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For coagulation of arsenious sulphate sol, which one of the following salt solution will be most effective ?
A
BaCl2
B
AlCl3
C
NaCl
D
Na3PO4
3
JEE Main 2019 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
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Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, x is the mass of the gas adsorbed on mass m of the adsorbent at pressure P. $${x \over m}$$ is proportional to :

JEE Main 2019 (Online) 9th January Morning Slot Chemistry - Surface Chemistry Question 94 English
A
P2
B
P$${^{{1 \over 4}}}$$
C
P$${^{{1 \over 2}}}$$
D
P
4
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
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Which one of the following is not a property of physical adsorption?
A
Higher the pressure, mre the adsorption
B
Lower the temperature, more the adsorption
C
Greater the surface area, more the adsorption
D
Unilayer adsorption ocurs
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