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Dilute H(2)SO(4) can be used in group o...

Dilute `H_(2)SO_(4)` can be used in group of dil HCI

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The correct Answer is:
F
HCI common `H^(Theta)` ion decreases ionsion of `H_(@)S` giving less `[S^(Theta)]` that can percipitate group II to salphides .But `H_(2)SO_(4)` athough a good source of `H^(theta)` , will precipitate `Pb^(2+),Zn^(2+),Ba^(2+),Ca^(2+),Se^(2+)` atc as their sulphate hence true
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CENGAGE CHEMISTRY-QUALITATIVE INORGANIC SALT ANALYSIS-Exercises (True And False )
  1. Tumbull's and prussiant's blue respectively are KFe^(II)[Fe^(III)(C...

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  2. If K(sp)of M(OH)(3) is 1 xx 10^(-12) then 0.001 M.M^(2+) is precipit...

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  3. There is ppt. of solute AB if its product is greater than K(sp) val...

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  4. When Cl(2) gas is passed into a mixture containing Br^(Θ) and I^(Θ) ...

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  5. When H(2)S gas is passed into aq ZnCI(2) solution white ppt of ZnS is...

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  6. Dilute H(2)SO(4) can be used in group of dil HCI

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  7. NH(4)CI can be replaced by (NH(4))(2)SO(4) in group III.

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  8. Alkaline solution of NH(4)Cl gives ppt with K(2)HgI(4)

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  9. When KNO(2) and CH(2)COOH is added as CoCl(2) solution, yellow ppt of ...

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  10. K(4)[Fe(CN)(6)] is used to test Cu^(2+),Fe^(2+),Zn^(2+),Cd^(2+)

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  11. Hg(2)Cl(2) is black ened by NH(3) due to formation of iodide of mi...

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  12. White ppt of PbCl(2) is soluble in aq NH(3).

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  13. If acidified solution of K(2)Cr(2)O(7) turm green on addition of...

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  14. In group II, Formqation of whichsh tarbidity on dilation with H(2)O ...

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  15. NaOH can be used to seprate Al(OH)(3) and Zn(OH)(2) .

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  16. NH(4)SCN can be used to make distanction between Cu^(2+) and Co^(2+)...

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  17. Yellow ammonium sulphide (YAS) can be used to seprate SnS and As(2)S...

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  18. NaOH can be used to seprate Al(OH)(3) and Zn(OH)(3) .

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  19. AlCl(2) is soluble is axcess of NaOH forming sodium metaaluminate ...

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  20. BaBr(2) gives yellow ppt with AgNO(3) as well as with K(2)CrO(4).

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