Question:
The solution which does not produce precipitate when treated with aqueous K$_2$CO$_3$ is
The solution which does not produce precipitate when treated with aqueous K$_2$CO$_3$ is
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All alkali metal salts are soluble → no precipitation reactions.
Updated On: May 1, 2026
- BaCl$_2$
- CaBr$_2$
- MgCl$_2$
- Na$_2$SO$_4$
- Pb(NO$_3$)$_2$
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The Correct Option is D
Solution and Explanation
Concept:
Carbonates of most metals are insoluble except alkali metals.
Step 1: Check reactions
Ba$^{2+}$, Ca$^{2+}$, Mg$^{2+}$, Pb$^{2+}$ form insoluble carbonates → precipitate. Na$^+$ forms soluble Na$_2$CO$_3$ → no precipitate. Final Answer: \[ \boxed{(D)} \]
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