1
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Electrochemistry Question 110 English
$$E_{C{u^{2 + }}|Cu}^0$$ = +0.34 V

$$E_{Z{n^{2 + }}|Zn}^0$$ = -0.76 V

Identify the incorrect statement from the option below for the above cell :
A
If Eext < 1.1 V, Zn dissolves at anode and Cu deposits at cathode
B
If Eext = 1.1 V, no flow of e or current occurs
C
If Eext > 1.1 V, e flows from Cu to Zn
D
If Eext > 1.1 V, Zn dissolves at Zn electrode and Cu deposits at Cu electrode
2
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The intermolecular potential energy for the molecules A, B, C and D given below suggests that : JEE Main 2020 (Online) 4th September Morning Slot Chemistry - Chemical Bonding & Molecular Structure Question 146 English
A
A-B has the stiffest bond
B
A-D has the shortest bond length
C
A-A has the largest bond enthalpy
D
D is more electronegative than other atoms
3
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following will react with CHCl3 + alc. KOH?
A
Adenine and thymine
B
Thymine and proline
C
Adenine and lysine
D
Adenine and proline
4
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of isomers possible for
[Pt(en)(NO2)2] is :
A
3
B
1
C
4
D
2
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