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Why is a green flame not obtained in the...

Why is a green flame not obtained in the case of barium sulphate or barium phosphate ?

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Both barium sulphate and barium phosphate are insoluble and cannot be easily converted into chlorides. Therefore, the green flame is either indistinct or visible with difficulty.
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Exercise-1
  1. Why compounds shows colours in flame test ?

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  2. Is intensity of colour in flame test, depends upon the concentration o...

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  3. Why is a green flame not obtained in the case of barium sulphate or ba...

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  4. colourless salt (A) underset(740^(@)C) overset(Delta)to (B) +(C ) over...

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  5. Why is sodium carbonate extract acidified before performing the confir...

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  6. Can sodium carbonate extract be used test for CO(3)^(2-) ions ?

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  7. What will happen if a solution of Ca(HCO(3))(2), formed by passing the...

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  8. What will happen if bromine water is added in a white precipitate of B...

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  9. Salt (A) + lime water to white precipitate darr white precipitate + ...

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  10. What will happen ? (Also write the chemical equations). (a) When a f...

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  11. A nitrite solution is added to a saturated solution of iron (II) acidi...

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  12. Why is it necessary to test for the acid radicals first with dil. H(2)...

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  13. Why chromyl chloride test is carried out in a dry test tube ?

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  14. Why bromides and iodides do not respond to chromyl chloride test ?

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  15. NaCl on heating with conc. H(2)SO(4) gives HCl where as NaBr and NaI g...

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  16. Dilute Hydrochloric acid contains chloride ions but it doesnot give po...

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  17. Identify the gas A, B and C.

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  18. Why heavy metal chlorides such as Hg(2)Cl(2), AgCl, PbCl(2) etc. do no...

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  19. Why is a freshly prepared solution of FeSO(4) used for the detection o...

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  20. Cu^(2+) " and" Ba^(2+) interfere in the flame test for borate, why ?

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