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JEE Main Chemistry Class 12 The D and F Block Elements Part 2 Questions
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Question : 21
Total: 111
Given below are two statements :
Statement I : The higher oxidation states are more stable down the group among transition elements unlike p-block elements.
Statement II : Copper can not liberate hydrogen from weak acids.
In the light of the above statements, choose the correct answer from the options given below :
[9 Apr 2024 Shift 2]
Both Statement I and Statement II are false
Statement I is false but Statement II is true
Both Statement I and Statement II are true
Statement I is true but Statement II is false
Validate
Solution:
On moving down the group in transition elements, stability of higher oxidation state increases, due to increase in effective nuclear charge.
⇒
E
Cu
+
2
∕
Cu
∘
=
0.34
V
⇒
E
H
+
∕
H
2
∘
=
0
SRP
:
Cu
2
+
>
H
+
Cu
can't liberate hydrogen gas from weak acid.
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