Explain what basic, mixed ,complex and double salts are?

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Solution

Basic salts:
Salts that are formed by the partial replacement of the ionizable hydrogen ions or the incomplete neutralization of a base is called basic salts
Bases Basic salts
$P b {(O H)}_{2}$ $P b {(N O_{3})}_{2} . P b {(O H)}_{2}$
$C a {(O H)}_{2}$ $C u C O_{3} . C u {(O H)}_{2}$
Mixed salts:
They are formed by the combination of more than one acid or base radical or more than one cation or anion.
Example:
$C a (O C l) C l \to B l e a c h i n g p o w d e r N a_{2} K P O_{4} \to D i s o d i u m P o t t a s s i u m P h o s p h a t e$
Complex salts:
They are formed when anions, neutral molecules, or both are held together by a metal ion.
Example:
$F e S O_{4} . {(N H_{4})}_{2} S O_{4} . 6 H_{2} O (M o h r' s s a l t) K_{2} S O_{4} . A l_{2} {(S O_{4})}_{3} . 24 H_{2} O (P o t a s h a l u m)$
Double salts:
They are formed by combining two simple salts which dissolve in water to form a crystal.
Example: $K_{4} F e {(C N)}_{6} \to P o t t a s s i u m F e r r o c y a n i d e N a A l O_{2} \to S o d i u m A l u m i n a t e$

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