JEE Main 2026 — Jan 24, Shift 2 — Chemistry solution

JEE Main2026Jan 24, Shift 2Chemistry

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

A
sulphide & sulphide
B
hydroxide & carbonate
C
carbonate & carbonate
D
chromate & sulphide

Solution

In qualitative analysis, Group V cations ( $Ba^{2 +}$ , $Sr^{2 +}$ , $Ca^{2 +}$ ) are precipitated using $(NH_{4})_{2} CO_{3}$ in presence of $NH_{4} Cl$ and $NH_{4} OH$ .

Both $Ba^{2 +}$ and $Ca^{2 +}$ are precipitated as their respective carbonates: $BaCO_{3}$ and $CaCO_{3}$ .

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