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

Choose the correct stability order of group 13 elements in their + 1 oxidation state :

A
Al < Ga < In < Tl
B
Tl < In < Ga < Al
C
Al < Ga < Tl < In
D
Al < Tl < Ga < In
2
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
3
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Consider the following reaction :

A + alkali $$\to$$ B (Major Product)

If B is an oxoacid of phosphorus with no P-H bond, then A is :

A
White P4
B
Red P4
C
P2O3
D
H3PO3
4
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The number of bridged oxygen atoms present in compound B formed from the following reactions is

Pb(NO3)2 $$\buildrel {673\,K} \over \longrightarrow $$ A + PbO + O2

A $$\buildrel {Dimerise} \over \longrightarrow $$ B

A
0
B
1
C
2
D
3
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