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Why compounds shows colours in flame tes...

Why compounds shows colours in flame test ?

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When compound is heated, the electrons gain energy and can jump into the empty orbitals at higher level. Higher levels are energetically unstable so electrons tend to fall back transmit the light as characteristic colour.
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Exercise-1
  1. What is importance of dry tests and it is applicable to which kind of ...

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  2. Give the observation when each of the following is heated in a dry tes...

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  3. Why compounds shows colours in flame test ?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. Identify the gas A, B and C.

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

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