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NaCl is not hygroscopic but common table...

`NaCl` is not hygroscopic but common table salt is hygroscopic. Why? 

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Table salt contains calcium chloride and magnesium chloride as impurites which are deliquescent in nature. Thus common table salt is hygroscopic.
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AAKASH SERIES-ALKALI METALS-Questions for descriptive answers
  1. NaCl is not hygroscopic but common table salt is hygroscopic. Why?

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  2. How are sodium carbonate and sodium bicarbonate interconverted?

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  3. Active metals like sodium can be extracted only by the electrolysis of...

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  4. Na(2)CO(3)overset(+SO(2))underset(-CO(2))rarrAoverset(+S)underset("Boi...

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  5. AICI(3) overset(+NaOH)rarr X darr overset("excess" NaOH)rarr Y (Clear...

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  6. A white solid is either Na(2)O or Na(2)O(2). A piece of red litmus tur...

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  7. How is the possible reaction between sodium and chlorine prevented in ...

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  8. Lithinum is the strogest reductant in aqueous solutions. Why ?

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  9. Alkali metals are paramagnetic but this salts are diamagnetic. Substan...

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  10. Why sodium metal can be used for drying diethyl ether but not ethanol ...

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  11. how is pure sodium hydroxide prepared ?

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  12. Why strand solution of NaOH cannot be prepared by direct weighing ?

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  13. Why is sodium fire in the laboratory not extinguished by water ?

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  14. AI(OH)(3) is insoluble in excess of NH(4)OH but soluble in excess of N...

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  15. Why alkali metal except lithium can not for complex ions ?

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  16. What is electric eye ? How alkali metals are related to this ?

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  17. Solvay process can be represented by the following scheme Identify A, ...

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  18. During the titration of a mixture of Na(2)CO(3) and NaHCO(3) against H...

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