The electronegativity of a group 13 element ' $E$ ' is same as that of Ge (on Pauling scale and upto one decimal point). The CORRECT statements about $\mathrm{E}^{3+}$ are
A. It can act as a reducing agent.
B. It can act as an oxidizing agent.
C. $\mathrm{E}^{3+}$ is more stable than $\mathrm{E}^{+}$.
D. The standard electrode potential value for $\mathrm{E}^{3+} / \mathrm{E}$ is positive.
Choose the correct answer from the options given below:
Select the correct option:
A
A and C Only
B
B and C Only
C
B and D Only
D
A and D Only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
EN of ' $\mathrm{T} \ell$ ' is 1.8 that is same as ' Ge '
$$
' \mathrm{E}^{\prime}=\mathrm{T} \ell
$$
$\mathrm{T} \ell^{+3}$ acts as oxidizing agent
Stability order : $\mathrm{T} \ell^{+3}<\mathrm{T} \ell^{+1}$ (due to inert pair effect)
The standard electrode potential value $\mathrm{E}^{\circ}\left(\mathrm{T} \ell^{3+} / \mathrm{T} \ell\right)=+1.26 \mathrm{~V}$
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