1
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List - I with List - II

List - I
(Parmeter)
List - II
(Unit)
(a) Cell constant (i) $$S\,c{m^2}mo{l^{ - 1}}$$
(b) Molar conductivity (ii) Dimensionless
(c) Conductivity (iii) $${m^{ - 1}}$$
(d) Degree of dissociation of electrolyte (iv) $${\Omega ^{ - 1}}{m^{ - 1}}$$


Choose the most appropriate answer from the options given below :
A
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
B
(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
C
(a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
D
(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
2
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :

Statement I : The limiting molar conductivity of KCl (strong electrolyte) is higher compared to that of CH3COOH (weak electrolyte).

Statement II : Molar conductivity decreases with decrease in concentration of electrolyte.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Statement I is true but Statement II is false.
B
Statement I is false but Statement II is true.
C
Both Statement I and Statement II are true.
D
Both Statement I and Statement II are false.
3
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Compound A used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound A is :
A
PbO
B
PbO2
C
PbSO4
D
Pb3O4
4
JEE Main 2021 (Online) 24th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The electrode potential of M2+/M of 3d-series elements shows positive value for :
A
Zn
B
Fe
C
Cu
D
Co
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