Question

Which of the following hydroxide is soluble in $N{H}_{4}Cl$ Solution.

• A. $Zn(OH{)}_2$
• B. $Ni(OH{)}_2$
• C. $Fe(OH{)}_3$
• D. $Cr(OH{)}_3$

Answer 1

The correct option is A $Zn(OH{)}_2$

$Z{n}^{2+}+2N{H}_{4}OH\rightleftharpoons Zn(OH{)}_2\downarrow +2$