JEE MAIN - Chemistry (2021 - 16th March Morning Shift - No. 14)
The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3 . 4NH3 is _________. (Round off to the Nearest Integer).
Answer
2
Explanation
$$[Co{(N{H_3}]_4}C{l_2}]Cl + 2en \to [Co{(en)_2}C{l_2}] + 4N{H_3}$$
NH3 is the neutral monodentate ligand. Ethylene diamine is a neutral didentate ligand.
$${H_2}\mathop N\limits^{ \bullet \,\, \bullet } - C{H_2} - C{H_2} - \mathop N\limits^{ \bullet \,\, \bullet } {H_2}(en)$$
So, two ethylene diamine are equivalent to four 'NH3' ligand.
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