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A metal salt solution when treated with ...

A metal salt solution when treated with dimethyl glyoxime and `NH_(4)OH` gives a cherry red complex. The metal is:

A

`Ni`

B

`Zn`

C

`CO` and `CO_(2)`

D

`Mn`

Text Solution

Verified by Experts

The correct Answer is:
A
`Ni^(2+) +DMG rarr underset(("Red complex ppt"))([Ni(DMG)_(2)]darr)`
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GRB PUBLICATION-SALT ANALYSIS-J: IVth Group Cations
  1. An aqueous solution contains both Al^(3+) & Zn^(2+).To this solution N...

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  2. A solution containing SCN^(-) ions can be used to test one or more out...

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  3. The auxiliary reagent in group-IV reagent is:

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  4. To avoid the precipitation of hydroxides of Ni^(2+),Co^(2+),Mn^(2+) al...

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  5. A blue colouration (in solution or precipitate) is not obtained when:

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  6. In the fourth group, white precipitate of Mn(OH)(2) on heating with Pb...

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  7. A coloured solution of a salt gives following reactions: I. It gives...

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  8. Zn(OH)(2)darr is soluble in:

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  9. Which of the following metal sulphides has maximum solubility in water...

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  10. A reddish pink substance on heating gives off a vapour which condenses...

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  11. Among the following, buff colour metal sulphide is:

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  12. Black colour compound A is insoluble in HCI solution but soluble in aq...

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  13. When H(2)S gas a passed through an ammonical salt solution X, a slight...

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  14. Buff coloured cyanide compound (A) reacts with excess of KCN in presen...

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  15. Among the following, brownish black colour metal sulphide is:

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  16. How many structural isomers can be possible for yellow complex?

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  17. To increase significantly the concentration of free Zn^(2+) ion is a s...

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  18. CoS (black) obtained in group IV of salt analysis is dissolved in aqua...

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  19. A metal salt solution when treated with dimethyl glyoxime and NH(4)OH ...

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  20. An aqueous solution of colourless metal sulphate M, gives a white prec...

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