Home
Class 12
CHEMISTRY
How might you separate the following pai...

How might you separate the following pairs of ions by addition of singles reagent include formula for the major products of the reactions(a)`Fe^(3+)`and`Na^(+)`(b)`Cr^(3+)`and`Fe^(3+)`(c )`Fe^(2+)`and `Cu^(2+)`

Text Solution

Verified by Experts

(a)`Fe^(3+)`and Na
Add KOH(excess),`Fe^(3+)`is precipitaed as `Fe(OH)_(3)` Na remains in solution
`Fe^(3+)(aq)+3OH(aq)toFe(OH)_(3)(s)darr`
(b) `Cr^(3+)` and `Fe^(3+)`
Add KOH(excess),ofaq NaOH,`Fe^(3+)` is precipitated as Fe(Oh) while `Cr(OH)_(3)` First formed dissolves in excess of aq.`NaOHFe^(3+)`
`(aq)+3OH(aq)toFe(OH)_(3)(s)overset(OH)^(-))to`does not dissolve
Promotional Banner

Similar Questions

Explore conceptually related problems

Balance the following equations. Fe+O_2 to Fe_2O_3

Balance the following equations by ion electron (half reaction) method for each of the following equations: Cr_(2)O_(7)^(2-) + Fe^(2+) rarr cr^(3+) + Fe^(3+) + H_(2)O

Classify the following as oxidation and reduction reaction, also complete the reaction. Fe^(3+) to Fe^(2+)

Write the half reaction for the reaction 2Fe^(+3) + 2I^(-) to 2Fe^(+2) + I_(2)

The correct order of the number of unpaired electrons in the ions Cu^(2+), Ni^(2+), Fe^(3+) , and Cr^(3+) is

Fe(OH)_(3) can be separated from Al(OH)_3 by addition of:

How many of the following pairs of ions can be separated by H_2S in dilute HCl ? Bi^(3+) and Sn^(4+),Al^(3+) and Hg^(2+),Cd^(2+) and Zn^(2+),Fe^(3+) and Cu^(2+), As^(3+) and Sb^(3+)

Which of the following pairs of ions have the same electronic configuration A) Cr^(+3),Fe^(+3) B) Fe^(+3),Mn^(+2) C) Fe^(+3),Co^(+3) D) Sc^(+3),Cr^(+3)

Which of the following pairs of ions have the same electronic configuration A) Cr^(+3),Fe^(+3) B) Fe^(+3),Mn^(+2) C) Fe^(+3),Co^(+3) D) Sc^(+3),Cr^(+3)

For the reaction Fe_2N(s)+(3)/(2)H_2(g)=2Fe(s)+NH_3(g)