Identify the incorrect pair.

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(B) $Co^{2+}$ is the central metal ion in Vitamin $B_{12}$.$Mg^{2+}$ is the central metal ion in chlorophyll,which is essential for photosynthesis.$Fe

Vedclass · Accepted Answer

$Se^{2+} - 	ext{Krebs cycle}$

Vedclass · Answer

(B) $Co^{2+}$ is the central metal ion in Vitamin $B_{12}$.$Mg^{2+}$ is the central metal ion in chlorophyll,which is essential for photosynthesis.$Fe^{2+}$ is the central metal ion in hemoglobin,responsible for oxygen transport.$Se^{2+}$ is not a central metal ion in the Krebs cycle; the Krebs cycle involves various enzymes and cofactors,but selenium is not a primary coordination center in this context. Therefore,the pair $Se^{2+} - 	ext{Krebs cycle}$ is incorrect.

$A$. Haber process	$I$. Fe catalyst
$B$. Wacker oxidation	$II$. $PdCl_2$
$C$. Wilkinson catalyst	$III$. $[(PPh_3)_3RhCl]$
$D$. Ziegler catalyst	$IV$. $TiCl_4$ with $Al(CH_3)_3$

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Match List-$I$ with List-$II$:

$A$. Haber process $I$. Fe catalyst

$B$. Wacker oxidation $II$. $PdCl_2$

$C$. Wilkinson catalyst $III$. $[(PPh_3)_3RhCl]$

$D$. Ziegler catalyst $IV$. $TiCl_4$ with $Al(CH_3)_3$

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