(C) In the qualitative analysis of cations,$Ba^{2+}$ and $Ca^{2+}$ belong to Group $V$. They are precipitated by the addition of $(NH_{4})_{2}CO_{3}$

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(C) In the qualitative analysis of cations,$Ba^{2+}$ and $Ca^{2+}$ belong to Group $V$. They are precipitated by the addition of $(NH_{4})_{2}CO_{3}$ in the presence of $NH_{4}Cl$ and $NH_{4}OH$. Both $Ba^{2+}$ and $Ca^{2+}$ react with the carbonate ion $(CO_{3}^{2-})$ to form their respective insoluble carbonates,$BaCO_{3}$ and $CaCO_{3}$.

Class 12 Chemistry Principles Related to Practical Chemistry Wet Test for Basic Radical

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In the group analysis of cations,$Ba^{2+}$ and $Ca^{2+}$ are precipitated respectively as

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sulphide and sulphide
B
hydroxide and carbonate
C
carbonate and carbonate
D
chromate and sulphide

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Aqueous $NaOH$ is added,then heated gently.	Gas given off which turns damp red litmus paper blue.
Dilute $HCl$ is added.	Effervescence,gas given off which turns lime water milky and acidified $K_2Cr_2O_7$ paper green.

In the group analysis of cations,$Ba^{2+}$ and $Ca^{2+}$ are precipitated respectively as

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Conc. $HNO_3$ is added before proceeding to test for group $III$ members. This is to

Assign $A, B, C, D$ from the given type of reaction:$2KCN + Pb(NO_3)_2 \longrightarrow Pb(CN)_2 \downarrow + 2KNO_3$

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Assign $A, B, C, D$ from the given type of reaction:
$2KCN + Pb(NO_3)_2 \longrightarrow Pb(CN)_2 \downarrow + 2KNO_3$