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D and F Block Elements question

2022 · 29 Jul · Shift 2 · Q7

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D and F Block Elements
2022 · 29 Jul · Shift 2 · Q7

D and F Block Elements question

2022 · 29 Jul · Shift 2 · Q7

JEE MainChemistryD and F Block ElementsMCQ+4 / −1

Which of the following

3\mathrm{d}

-metal ion will give the lowest enthalpy of hydration

\left(\Delta_{\text {hyd }} \mathrm{H}\right)

when dissolved in water ?

A
$\mathrm{Cr}^{2+}$
B
$\operatorname{Mn}^{2+}$
C
$\mathrm{Fe}^{2+}$
D
$\mathrm{Co}^{2+}$

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