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Dilute Hydrochloric acid contains chlori...

Dilute Hydrochloric acid contains chloride ions but it doesnot give positive chromyl chloride test, why ?

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Because in presence of water chromic acid is obtained in place of chromyl chloride.
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Exercise-1
  1. Why bromides and iodides do not respond to chromyl chloride test ?

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

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

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  4. Identify the gas A, B and C.

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

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

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

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  8. In which of the following reagents, the white precipitate fo PbSO(4) i...

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  9. How will you distinguish between sulphite and sulphate ions ?

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  10. When a metal sulphate is heated in dry test tube, the colour changes f...

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  11. Which of the following can not evolve more than one gas (vapour) if he...

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  12. On heating, a white amorphous inorganic compound becomes yellow and on...

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  13. Which of the following metal carbonates liberate. CO(2)(g) on heating ...

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  14. In which of the following reactions a brown coloured gas is evolved ?

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  15. Why is concentrated HCl used to dissovle the given metal salt in the f...

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  16. The hottest part of the flame of a Bunsen burner is the

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  17. Metal (M) shows crimson red colour in flame test and its halide is del...

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  18. In Borax bead test, metal oxides react with B(2)O(3) and form a colour...

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  19. Which does not give borax bead test?

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  20. In the Borax bead test of Co^(2+), the blue colour of bead is due to t...

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