Identify the formula of pentaaqua-isothiocyan | vedclass

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Question

(B) Pentaaqua means there are five water molecules,$(H_2O)_5$,ligated to the central metal.Isothiocyanato refers to the presence of one isothiocyanate

Vedclass · Accepted Answer

$[Fe(H_2O)_5(NCS)]^{2+}$

Vedclass · Answer

(B) Pentaaqua means there are five water molecules,$(H_2O)_5$,ligated to the central metal.Isothiocyanato refers to the presence of one isothiocyanate ligand,represented as $(NCS^-)$,which is $N$-bonded.Iron$(III)$ ion indicates that the oxidation state of iron is $+3$.The overall charge on the complex is calculated as: $	ext{Charge} = 	ext{Oxidation state of } Fe + 	ext{Charge of } H_2O + 	ext{Charge of } NCS^- = (+3) + 0 + (-1) = +2$.Thus,the formula is $[Fe(H_2O)_5(NCS)]^{2+}$.Option $B$ is the correct answer.

Identify the formula of pentaaqua-isothiocyanatoiron$(III)$ ion from the following.

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