Question

What is the name $Pb{(OH)_2}?$

Answer 1

Hint : To name the given compound we must follow a set of rules. In $Pb{(OH)_2}$,$P{b^{ + 2}}$ is cation and $O{H^ - }$is an anion. An anion is an ion that has gained one or more electrons, acquiring a negative charge. A cation is an ion that has lost one or more electrons, gaining a positive charge.

Complete Step By Step Answer:
-An ionic compound is named first by its cation and then by its anion. The cation has the same name as its element-
-On the off chance that either the cation or the anion was a polyatomic particle, the polyatomic particle name is utilized for the sake of the general compound. The polyatomic particle name remains something similar.
-For cations that take on different charges (commonly transition metals), the charge is composed utilizing Roman numerals in brackets promptly following the component name.
$Pb$ is a changing metal and has more than one potential oxidation state. Thus by the IUPAC naming law, it is important to demonstrate the oxidation condition of the component utilizing Roman numerals contained in sections. The $P{b^{ + 2}}$ ion has an ionic charge of $ + 2$, meaning that it has $2$ fewer electrons than protons. Thus its oxidation charge would be $ + 2$, which corresponds to the systematic name $lead(II)$. The anion $O{H^ - }$is the hydroxide ion.
So, the name of the $Pb{(OH)^ - }$is Lead$(II)$ Hydroxide.

Note :
At the point when a hydroxide is added to an answer of a lead salt, hydrated lead oxide is gotten. Cautious hydrolysis of lead acetic acid derivation arrangement yields a crystalline product. This material is a group compound, comprising of an octahedron of $Pb$ focuses, each face of which is covered by an oxide or a hydroxide.