1.

Solubility product of the hydroxide M(OH)_2" is "4 xx 10 ^(-12), Select the correct statement (s) among the following:

Answer»

The pH of its saturated solution will be 10. 3
Its solubility will decrease in a buffer medium of pH= 9
Its solubility will increase in a buffer medium of pH =1
Its solubility UNAFFECTED by pH of the medium

Solution :` 4S ^(3)=4 xx 10^(-12), S = 10 ^(4)M,`
` [OH^(-) ] =2 xx 10^(-12), S = 10 ^(-4)M,`
In pH `= 9, POH =10 ^(-5) `
` i.e., [OH^(-) ] downarrow rArr " solubilitywill "uparrow `
In pH =1, POH =` 10 ^(-13)`
` i.e., [OH^(-)] downarrow rArr " Solubility will " uparrow `


Discussion

No Comment Found