Q.6.23 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the name for each of the following ions (include the Roman numeral when necessary):

a. ${\mathrm{Fe}}^{2+}$

b. ${\mathrm{Cu}}^{2+}$

c. ${\mathrm{Zn}}^{2+}$

d. ${\mathrm{Pb}}^{4+}$

e. ${\mathrm{Cr}}^{3+}$

f. ${\mathrm{Mn}}^{2+}$

Step-by-Step Solution

Answer

Part a. ferrous ion or iron (II) ion

Part b. cupric ion or copper (II) ion

Part c. zinc ion

Part d. lead (IV) ion

Part e. chromium (III) ion

Part f. manganese (II) ion

Part (a) Step 1: Given Information

The name for the following ion - $F{e}^{2+}$

Part (a) Step 2: Explanation

$F{e}^{2+}$is the Ferrous ion or iron (II) ion- $+2$ is the lower oxidation state of iron.

Part (b) Step 1: Given Information

The name for the following ion - $C{u}^{2+}$

Part (b) Step 2: Explanation

$C{u}^{2+}$is the cupric ion or copper (II) ion -$+2$ is the higher oxidation state of copper. 

Part (c) Step 1: Given Information

The name for the following ion - $Z{n}^{2+}$

Part (c) Step 2: Explanation

$Z{n}^{2+}$is the zinc ion 

Part (d) Step 1: Given Information

The name for the following ion - $P{b}^{4+}$

Part (d) Step 2: Explanation

$P{b}^{4+}$is the lead (IV) ion - it is in $+4$ oxidation state.

Part (e) Step 1: Given Information

The name for the following ion - $C{r}^{3+}$

Part (e) Step 2: Explanation

$C{r}^{3+}$is the chromium (III) ion- it is in the $+3$ oxidation state.

Part (f) Step 1: Given Information

The name for the following ion - $M{n}^{2+}$

Part (f) Step 2: Explanation

$M{n}^{2+}$is the manganese (II) ion - it's in the $+2$ oxidation state.