The molar solubilities of the following compounds (in mol/l) are:

agbr = 7.3 x 10-7

agcn = 7.7 x 10-9

agscn = 1.0 x 10-6

when these compounds are arranged in order of decreasing ksp values, what is the correct order?

agcn > agscn > agbr
agbr > agcn > agscn
agscn > agbr > agcn
agcn > agbr > agscn

The decreasing order of is

Explanation:

The balanced equilibrium reaction for the ionization of silver bromide follows:

                 s      s

The expression for solubility constant for this reaction will be:

We are given:

Putting values in above equation, we get:

Solubility product of AgBr =

The balanced equilibrium reaction for the ionization of silver cyanide follows:

                    s      s

The expression for solubility constant for this reaction will be:

We are given:

Putting values in above equation, we get:

Solubility product of AgCN =

The balanced equilibrium reaction for the ionization of silver thiocyanate follows:

                     s      s

The expression for solubility constant for this reaction will be:

We are given:

Putting values in above equation, we get:

Solubility product of AgSCN =

The decreasing order of follows:

a