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In Nessler's reagent, the active ion is...

In Nessler's reagent, the active ion is

A

`Hg^(+)`

B

`Hg^(2+)`

C

`[HgI]^(2-)`

D

`[HgI_(4)]^(2-)`

Text Solution

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`[HgI_(4)]^(2-)` is the active ion in Nessler's reagent.
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DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-RQ
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  4. Which of the following forms a hydroxide highly soluble in water?

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  6. A metal salt solution forms a yellow precipitate with potassium chroma...

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  7. Which is soluble in NH4 OH?

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  8. Which of the following combines with Fe(II) ions to form a brown compl...

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  9. Which gives violet colour with borax?

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  10. When conc. H2 SO4 is added to dry KNO3 brown fumes evolve. These fumes...

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  11. Nessler's reagent is used to detect

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  12. The compound insoluble in acetic acid is

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  13. Prussian blue is formed when

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  14. What product is formed by mixing the solution of K4 [Fe (CN)6] with th...

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  15. A blue colouration is not obtained when

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  16. Which of the following will not give positive chromyl chloride test?

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  17. AgCl dissolves in ammonia solution giving

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  18. Nitrate of all metals are

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  19. When excess of SnCl2 is added to a solution of HgCl2, a white precipit...

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