Question

Which of the following is not an element of group $13$?

• A. $\mathrm{Pb}$
• B. $\mathrm{B}$
• C. $\mathrm{Al}$
• D. $\mathrm{In}$

Answer 1

The correct option is A

$\mathrm{Pb}$

Explanation for correct option:

A. $\mathrm{Pb}$

Group- $13$ elements:

• Group-$13$ elements belong to the p-block element.
• It is known as the Boron family.
• The elements that are present in Group-$13$ are discussed below:

1. Boron $\left(\mathrm{B}\right)$
2. Aluminium $\left(\mathrm{Al}\right)$
3. Gallium $\left(\mathrm{Ga}\right)$
4. Indium $\left(\mathrm{In}\right)$
5. Thallium $\left(\mathrm{Tl}\right)$
6. Nihonium $\left(\mathrm{Nh}\right)$

Lead $\left(\mathrm{Pb}\right)$ is not a Group-$13$ element, it belongs to Group-$14$.

Explanation for incorrect options:

Borom. Aluminium and Indium are the elements that belong to Group-$13$ while Lead belongs to Group-$14$. Thus options B, C, and D stand incorrect.

Hence, the correct option is A i.e. $\mathrm{Pb}$.