1. Tardigrade
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  3. Chemistry
  4. For the group detection test of basic radicals using appropriate group reagents, how many of the following ions can be precipitated as carbonates? Ba2 + , Zn2 + , Sr2 + , Ca2 + , Mn2 + , Pb2 + , Fe3 +

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Q. For the group detection test of basic radicals using appropriate group reagents, how many of the following ions can be precipitated as carbonates?
$Ba^{2 +}$ , $Zn^{2 +}$ , $Sr^{2 +}$ , $Ca^{2 +}$ , $Mn^{2 +}$ , $Pb^{2 +}$ , $Fe^{3 +}$

NTA AbhyasNTA Abhyas 2022

Solution:

During group detection, 'Group $V^{'}$ cations [ $Ba^{2 +},Sr^{2 +}$ and $Ca^{2 +}$ ] are precipitated as carbonates using the group reagent [ $\left(\left(NH\right)_{4}\right)_{2}\left(CO\right)_{3}$ in presence of $NH_{4}OH$ and $NH_{4}Cl$ ].