You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Introduction to Optical Isomerism

Which pair of...

Question

Which pair of ions will have highest Ksp values of their sulphides.
(1) ${Z n}^{2 +}, {C u}^{2 +}$
(2) ${P b}^{2 +}, {H g}^{2 +}$
(3) ${Z n}^{2 +}, {M n}^{2 +}$
(4) ${C d}^{2 +}, {B i}^{3 +}$

Open in App

Solution

Explanation for correct option:
(3) In case to determine the highest $K_{s p}$ , we have to check its precipitation rate. More easily the compound get precipitate lesser is its $K_{s p}$ .
Group 2 and group 4 are precipitated as their sulphides. Whereas the $K_{s p}$ of group 2 is less than group A ions, thus group 2 ions can be easily precipitated.
Hence, option (3) is correct.

Suggest Corrections

Similar questions

K_{4} [{F e (C N)}_{6}]

can be used to detect some ions out of

{C d}^{2 +}, {C u}^{2 +}, {Z n}^{2 +}, {F e}^{3 +}, {P b}^{2 +}

and

{B i}^{3 +}

. Excluded ions are :

Q. The pair(s) of ions where BOTH the ions are precipitated upon passing

H_{2} S

gas in presence of dilute

H C l

is/are:

Q. A solution which is

10^{- 3} M

each in

M n^{2 +}, F e^{2 +}, Z n^{2 +}

and

H g^{2 +}

is treated with

10^{- 16} M

sulphide ion. If

K_{s p}

of MnS,FeS,ZnS andHgS are

10^{- 15}, 10^{- 23}, 10^{- 20}

and

10^{- 54}

respectively, which one will precipitate first?

Q. A solution which is

10^{- 3} N

each in

M n^{2 +}, F e^{2 +}, Z n^{2 +}

and

H g^{2 +}

is treated with

10^{- 16} M

sulphide ion. If

K_{s p}

values of

M n S, F e S, Z n S

and

H g S

are

10^{- 15}, 10^{- 23}, 10^{- 20}

and

10^{- 54}

respectively, which one will precipitate first ?

A solution which has $10^{- 3}$ M each of $M n^{2 +}, F e^{2 +}, Z n^{2 +}$ and $H g^{2 +}$ is treated with $10^{- 16}$ M sulphide ion. If $K_{s p}$ of $M n S$ , $F e S$ , $Z n S$ and $H g S$ are $10^{- 15}$ , $10^{- 23}$ , $10^{- 20}$ and $10^{- 54}$ respectively, which one will precipitate first?

Join BYJU'S Learning Program

Which pair of ions will have highest Ksp values of their sulphides. (1) Zn2+,Cu2+ (2) Pb2+,Hg2+ (3) Zn2+,Mn2+ (4) Cd2+,Bi3+

Which pair of ions will have highest Ksp values of their sulphides.
(1) ${Z n}^{2 +}, {C u}^{2 +}$
(2) ${P b}^{2 +}, {H g}^{2 +}$
(3) ${Z n}^{2 +}, {M n}^{2 +}$
(4) ${C d}^{2 +}, {B i}^{3 +}$