In a buffer solution composed of NaCN and HCN (pK_1=9.4), [NaCN]=0.2(M) and [HCN]=0.4(M). An aqueous solution solutioncontains Zn^(2+),Ca^(2+),Mn^(2+) and Cr^(3+) ions, each of which has a concentration of 0.1 (M). If 500mL of the buffer solution is added to 500mL of this aqueous solution, then the ions that will precipitate in theresulting solution K_(sp)[Zn(OH)_2]=4.6xx10^(-17) ,K_(sp)[Ca(OH)_2]=8xx10^(-6) , K_(sp)[Mn(OH)_2]=4.46xx10^(-14) and K_(sp)[Cr(OH)_3]=6.67xx10^(-31)] are -

In a buffer solution composed of NaCN and HCN (pK_1=9.4), [NaCN]=0.2(

1.	In a buffer solution composed of NaCN and HCN (pK_1=9.4), [NaCN]=0.2(M) and [HCN]=0.4(M). An aqueous solution solutioncontains Zn^(2+),Ca^(2+),Mn^(2+) and Cr^(3+) ions, each of which has a concentration of 0.1 (M). If 500mL of the buffer solution is added to 500mL of this aqueous solution, then the ions that will precipitate in theresulting solution K_(sp)[Zn(OH)_2]=4.6xx10^(-17) ,K_(sp)[Ca(OH)_2]=8xx10^(-6) , K_(sp)[Mn(OH)_2]=4.46xx10^(-14) and K_(sp)[Cr(OH)_3]=6.67xx10^(-31)] are -
Answer» `Zn^(2+)` `CA^(2+)` `MN^(2+)` `Cr^(3+)` ANSWER :A::C::D