1
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements :

Statement I : According to Ellingham diagram, any metal oxide with higher $$\Delta$$G$$^\circ$$ is more stable than the one with lower $$\Delta$$G$$^\circ$$.

Statement II : The metal involved in the formation of oxide placed lower in the Ellingham diagram can reduce the oxide of a metal placed higher in the diagram.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.
2
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Consider the following reaction:

$$2HSO_4^ - (aq)\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(2)\,Hydrolysis}^{(1)\,Electrolysis}} 2HSO_4^ - + 2{H^ + } + A$$

The dihedral angle in product A in its solid phase at 110 K is :

A
104$$^\circ$$
B
111.5$$^\circ$$
C
90.2$$^\circ$$
D
111.0$$^\circ$$
3
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The correct order of melting point is :

A
Be > Mg > Ca > Sr
B
Sr > Ca > Mg > Be
C
Be > Ca > Mg > Sr
D
Be > Ca > Sr > Mg
4
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The correct order of melting points of hydrides of group 16 elements is :

A
H2S < H2Se < H2Te < H2O
B
H2O < H2S < H2Se < H2Te
C
H2S < H2Te < H2Se < H2O
D
H2Se < H2S < H2Te < H2O
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