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Colourless salt (A) overset(dil. HCI)rar...

Colourless salt `(A) overset(dil. HCI)rarr` White ppt. (B)

Iidentify (A),(B),(C ) and (D)

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(A) `Pb(NO_(3))_(2)` (B) `PbCI_(2)`
(C ) `PbI_(2)` (D) `[Fe(H_(2)O)_(3)NO]^(2+)`
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CENGAGE CHEMISTRY ENGLISH-QUALITATIVE INORGANIC SALT ANALYSIS-Viva Voce Questions And Part-C (Analysis Of Cations)
  1. Colourless salt (A) overset(dil. HCI)rarr White ppt. (B) Iidentify ...

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  2. Why is it necessary to prepare original solution for the detection of ...

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  3. Why do we not prefer to prepare original solution of cations in conc....

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  4. What is solubility product? Explain its importance in qualitative anal...

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  5. What is the basis of classification of cations into different group ?

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  6. Why are only Pb^(2+),Ag^(o+) and Hg(2)^(2+) ions precipitated in group...

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  7. Why is lead placed in group I as well in II?

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  8. Is it necessary to acidify a solution before group II cations are prec...

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  9. Give the reason for the formation of a light yellow or white ppt. in t...

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  10. Why do we Prefer HCl for preparing solution of cations?

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  11. Is it advisable to use conc. HCI in place of dilute HCI for preparing ...

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  12. Why is it essential to boil off H(2)S gas before proceeding to group I...

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  13. Can the solution be acidified with HNO(3) in group II before passing H...

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  14. What can it be, if the precipitate of group I is soluble in hot water ...

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  15. Why do we not prefer to prepare original solution of cations in conc....

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  16. Group I filtrate is made moderately acidic before proceeding to group ...

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  17. Why do we add excess of NH(4)Cl and NH(4)OH in the precipitation of gr...

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  18. Why do we add excess of NH(4)Cl and NH(4)OH in the precipitation of gr...

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  19. Why is it essential to oxidise ferrous salt to ferric salt in group II...

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  20. Can NH(4)Cl be replaced by any other ammonium salt for the precipitati...

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  21. How will you distinguish between ferrous and ferric salts?

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