Question
Which one of the following is true?(a) The charge on the complex ion in $\mathrm{K}_{2}\left[\mathrm{PtCl}_{4}\right]$ is $+2$(b) The coordination number of $\mathrm{Hg}$ in $\left[\mathrm{Hg}(\mathrm{en})_{2}\right]^{2+}$ is 4 (here en is ethylenediamine)(c) The oxidation number of iron in $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4}$ is $+6$.(d) In transition metal complexes, ligands act as lewis acid
Step 1
In the complex $\left[\mathrm{Hg}(\mathrm{en})_{2}\right]^{2+}$, each ethylenediamine (en) ligand has two nitrogen donor atoms. Therefore, the coordination number of Hg is 2 (from one en ligand) + 2 (from the other en ligand) = 4. Show more…
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Which of the following statement(s) is(are) true? a. The coordination number of a metal ion in an octahedral complex ion is $8 .$ b. All tetrahedral complex ions are low-spin. c. The formula for triaquatriamminechromium(III) sulfate is $\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]_{2}\left(\mathrm{SO}_{4}\right)_ 3}$ d. The electron configuration of $\mathrm{Hf}^{2+}$ is $[\mathrm{Xe}] 4 f^{12} 6 s^{2}$ e. Hemoglobin contains $\mathrm{Fe}^{3+}$.
Which of the following statement(s) is(are) true? a. The coordination number of a metal ion in an octahedral complex ion is 8. b. All tetrahedral complex ions are low-spin. c. The formula for triaquatriamminechromium(III) sulfate is $\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}$ d. The electron configuration of $\mathrm{Hf}^{2+}$ is $[\mathrm{Xe}] 4 f^{12} 6 s^{2}$ e. Hemoglobin contains $\mathrm{Fe}^{3+}$
Determine whether each statement is true or false. If it is false, correct the statement. (a) The coordination number of the $\mathrm{Fe}^{3+}$ ion in $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]^{+}$ is five. (b) $\mathrm{Cu}^{+}$ has two unpaired electrons. (c) The net charge of a coordination complex of $\mathrm{Cr}^{3+}$ with two $\mathrm{NH}_{3},$ one $\mathrm{en},$ and $\mathrm{two} \mathrm{H}_{2} \mathrm{O}$ is $2+$
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