1
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
The aerosol is a kind of colloid in which :
A
solid is dispersed in gas
B
gas is dispersed in solid
C
gas is dispersed in liquid
D
liquid is dispersed in water
2
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Match the catalysts (Column I) with products (Column II).

Column I Column II
(A) V2O5 (i) Polyethylene
(B) TiCl4/Al(Me)3 (ii) ethanal
(C) PdCl2 (iii) H2SO4
(D) Iron Oxide (iv) NH3
A
(A)-(iii); (B)-(i); (C)-(ii); (D)-(iv)
B
(A)-(ii); (B)-(iii); (C)-(i); (D)-(iv)
C
(A)-(iii); (B)-(iv); (C)-(i); (D)-(ii)
D
(A)-(iv); (B)-(iii); (C)-(ii); (D)-(i)
3
JEE Main 2019 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Adsorption of a gas follows freundlich adosorbed isotherm. x is the mass of the gas adsorbed on mass m of the adsorbent. The plot log $$x \over m$$ versus log p is shown in the given graph. $$x \over m$$ is proportional to : JEE Main 2019 (Online) 8th April Morning Slot Chemistry - Surface Chemistry Question 75 English
A
p2/3
B
p3
C
p2
D
p3/2
4
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Among the following the false statement is -
A
Lyophilic sol can be coagulated by adding an electrote
B
Tyndall effect can be used to distinguish between a colloidal solution and a true solution
C
It is possible to cause artificial rain by throwing electrified sand carrying charge opposite to the one on clouds from an aeroplane
D
Latex is a colloidal solution of rubber particles which are positively charged
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