This chapter is currently out of syllabus
1
JEE Main 2021 (Online) 27th July Morning Shift
Numerical
+4
-1
Out of Syllabus
CO2 gas adsorbs on charcoal following Freundlich adsorption isotherm. For a given amount of charcoal, the mass of CO2 adsorbed becomes 64 times when the pressure of CO2 is doubled. The value of n in the Freundlich isotherm equation is ____________ $$\times$$ 10$$-$$2. (Round off to the Nearest Integer)
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2
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
Out of Syllabus
100 ml of 0.0018% (w/v) solution of Cl$$-$$ ion was the minimum concentration of Cl$$-$$ required to precipitate a negative sol in one h. The coagulating value of Cl$$-$$ ion is _________ (Nearest integer)
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3
JEE Main 2020 (Online) 6th September Evening Slot
Numerical
+4
-1
Out of Syllabus
Change Language
For Freundlich adsorption isotherm, a plot of log (x/m) (y-axis) and log p (x-axis) gives a straight line. The intercept and slope for the line is 0.4771 and 2, respectively. The mass of gas, adsorbed per gram of adsorbent if the initial pressure is 0.04 atm, is ______ $$ \times $$ 10–4 g.
(log 3 = 0.4771)
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4
JEE Main 2020 (Online) 2nd September Morning Slot
Numerical
+4
-1
Out of Syllabus
The mass of gas adsorbed, x, per unit mass of adsorbate, m, was measured at various pressures, p. A graph between $$\log {x \over m}$$ and log p gives a straight line with slope equal to 2 and the intercept equal to 0.4771. The value of $${x \over m}$$ at a pressure of 4 atm is :
(Given log 3 = 0.4771)
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