1
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In which of the following half cells, electrochemical reaction is pH dependent?

A
$$Pt\,|\,F{e^{3 + }},\,F{e^{2 + }}$$
B
$$MnO_4^ - \,|M{n^{2 + }}$$
C
$$Ag\,|\,AgCl\,|C{l^{ - 1}}$$
D
$${1 \over 2}{F_2}\,|{F^ - }$$
2
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of electron gain enthalpy ($$-$$ ve value) is :

A
O > S > Se > Te
B
O < S < Se < Te
C
O < S > Se > Te
D
O < S > Se < Te
3
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$\Delta$$G$$^\circ$$ vs T plot for the formation of MgO, involving reaction

2Mg + O2 $$\to$$ 2MgO, will look like :

A
JEE Main 2022 (Online) 30th June Morning Shift Chemistry - Thermodynamics Question 59 English Option 1
B
JEE Main 2022 (Online) 30th June Morning Shift Chemistry - Thermodynamics Question 59 English Option 2
C
JEE Main 2022 (Online) 30th June Morning Shift Chemistry - Thermodynamics Question 59 English Option 3
D
JEE Main 2022 (Online) 30th June Morning Shift Chemistry - Thermodynamics Question 59 English Option 4
4
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List - I with List - II :

List-I List-II
(a) Sodium hydride (i) Lewis acid
(b) Silane (ii) Saline hydride
(c) Vanadium hydride (iii) Molecular hydride
(d) Aluminium hydride (iv) Non-stoichiometric hydride

Correct answer is :

A
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
B
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
C
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
D
(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
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