MCQ
Prussian blue is formed when
- AFerrous sulphate reacts with $FeC{l_3}$
- ✓Ferric sulphate reacts with ${K_4}\left[ {Fe{{(CN)}_6}} \right]$
- CFerrous ammonium sulphate reacts with $FeC{l_3}$
- DAmmonium sulphate reacts with $FeC{l_3}$
✓
Answer
Correct option: B.
Ferric sulphate reacts with ${K_4}\left[ {Fe{{(CN)}_6}} \right]$
b
(b) $F{e_2}\,{(S{O_4})_3} \to 2F{e^{3 + }} + 3SO_4^{2 - }$
${K_4}[Fe{(CN)_6}] + 2F{e^{3 + }} \to \mathop {F{e_4}{{[Fe{{(CN)}_6}]}_3}}\limits_{{\rm{Prussion}}\,{\rm{blue}}} $.
(b) $F{e_2}\,{(S{O_4})_3} \to 2F{e^{3 + }} + 3SO_4^{2 - }$
${K_4}[Fe{(CN)_6}] + 2F{e^{3 + }} \to \mathop {F{e_4}{{[Fe{{(CN)}_6}]}_3}}\limits_{{\rm{Prussion}}\,{\rm{blue}}} $.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following is true about freons?
Electrode potential data are given below :
→$F{e^{3 + }}(aq) + {e^ - } \to F{e^{ - 1}}(aq);\,{E^o} = + 0.77\,V$
$A{l^{3 + }}(aq) + 3{e^ - } \to Al(s);\,{E^o} = - 1.66\,V$
$B{r_2}(aq) + 2{e^ - } \to 2B{r^ - }(aq);\,{E^o} = + 1.08\,V$
Based on the data given above, reducing power of $F{e^{2 + }},\,Al$ and $B{r^ - }$ will increase in the order
In a copper voltameter experiment, current is decreased to one-fourth of the initial value but it is passed for four times the earlier duration. Amount of copper deposited will be
Assertion : $SnI_4$ is an orange solid.
→Reason : The colour arises due to charge transfer.
The electrolysis of a certain liquid resulted in the formation of hydrogen at the cathode and chlorine at the anode. The liquid is
Which of the following is true for an adiabatic process
Which of the following is correct ?
The smallest cation and the smallest anion are respectively
In the above compound $Cl$ will liberated easily in the form of
→Bohr’s model of atom explains :