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A sodium salt on treatment with MgCl(2) ...

A sodium salt on treatment with `MgCl_(2)` gives white precipitate only on heating. The anion of the sodium salt is `:`

A

`HCO_(3)^(-)`

B

`CO_(3)^(2-)`

C

`NO_(3)^(-)`

D

`SO_(4)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
A
`MgCl_(2)+2NaHCO_(3)rarrunderset("(soluble)")(Mg(HCO_(3))_(2))+2NaCl`
`Mh(HCO_(3))_(2)overset("heat")rarr MgCO_(3)darr+H_(2)P+CO_(2)`
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DISHA PUBLICATION-THE s-BLOCK ELEMENTS-Exercise - 2 : Concept Applicator
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  5. How many of the following orders are correct : (i) LiOH gt NaOH gt ...

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  6. Identify the correct statement

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  7. Sodium sulphate is soluble in water,whereas barium sulphate is sparing...

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  9. The raw materials of the Solvay precess are

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  10. The ease of adsorption of the hydrated alkali metal ions on ion-exchan...

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  11. The spectrum of He is expected to be similar to that of

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  12. Polyphosphates are used for softening agents because they

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  13. Which property of sodium is being used in street lights ?

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  15. Which of the following matals is sensitive to a wide range of photons ...

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  16. Amongst LiCl, RbCl, BeCl2 and MgCl2, the compounds whith the greatrest...

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  17. Which one of the following has minimum value of cation/anion ratio ?

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  18. Which of the following statement is false?

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  19. The following compounds have been arranged in order of their increasin...

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  20. Which of the following is/are correct for basic strength:

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