The correct statements from the following are :
(A) Tl3+ is a powerful oxidising agent
(B) Al3+ does not get reduced easily
(C) Both Al3+ and Tl3+ are very stable in solution
(D) Tl1+ is more stable than Tl3+
(E) Al3+ and Tl1+ are highly stable
Choose the correct answer from the options given below :
Solution
<p>(i) True: Tl<sup>1+</sup> is more stable than Tl<sup>3+</sup> due to the inert pair effect. Therefore, Tl<sup>3+</sup> acts as a powerful oxidizing agent.</p>
<p>(ii) True: The standard reduction potential for Al<sup>3+/Al</sup> is -1.66 V, indicating that Al<sup>3+</sup> is difficult to reduce and thus highly stable.</p>
<p>(iii) False: Tl<sup>3+</sup> is not stable in solution.</p>
<p>(iv) True: Tl<sup>1+</sup> is more stable than Tl<sup>3+</sup>.</p>
<p>(v) True: Both Al<sup>3+</sup> and Tl<sup>1+</sup> are highly stable in their respective oxidation states.</p>
About this question
Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family
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