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 : Interstitial compounds are chemically inert
In the light of the above statements, choose the correct answer from the options given below :

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Both statement I and statement II are false

Statement I false but statement II is true

Both statement I and statement II are true

Statement I is true but statement II is false

answer is C.

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Detailed Solution

On moving down the group in transition elements, stability of higher oxidation state increases, due to increase in effective nuclear charge.

$\Rightarrow E_{C u^{+ 2} / C u}^{0} = 0.34 V$

$\Rightarrow E_{H^{+} / H_{2}}^{0} = 0$

SRP : $C u^{2 +} > H^{+}$
Cu can’t liberate hydrogen gas from weak acid.

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