A) \[M{{g}^{2+}}\]ions will also be precipitated
B) Concentration of \[CO_{3}^{2-}\] ions is very low
C) Sodium ions will acid radicals
D) \[{{\operatorname{Na}}^{+}}\] ions will interfere with the detection of \[C{{a}^{2+}},\operatorname{B}{{a}^{2+}},{{\operatorname{Sr}}^{2+}}\] ions
Correct Answer: A
Solution :
In fifth group \[{{(N{{H}_{4}})}_{2}}C{{O}_{3}}\] is used in presence of \[N{{H}_{4}}Cl\]. In the presence of \[N{{H}_{4}}Cl\] dissociation of \[{{(N{{H}_{4}})}_{2}}C{{O}_{3}}\] decreases and due to low concentration of \[CO_{3}^{2-}\] ions only V group radical are precipitated out. If \[N{{a}_{2}}C{{O}_{3}}\] is used concentration of \[CO_{3}^{2-}\] ions will increase and \[M{{g}^{2+}}\] ions will also be precipitated.You need to login to perform this action.
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