Question

Givevthe example of double salt and complex compound

Answer 1

Double salt. A salt that crystallizes from an aqueous solution of a mixture of two different ions. The mineral dolomite (CaMg(CO 3)2), for example, is a double salt that crystallizes from a solution containing both calcium and magnesium ions. Double salts exist only as solids.

Answer 2

For example, KCeF4 is a double salt and gives K+, Ce3+ and F− ions when dissolved in water, whereas K4[YbI6] is a complex salt and contains the discrete [YbI6]4− ion which remains intact in aqueous solutions.

for complex compound ...

For example, ethylenediamine (en, H2NCH2CH2NH2) contains two nitrogen atoms, each of which has a lone pair and can serve as a Lewis base