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IIT JEE Qualitative Inorganic Analysis

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1. Which of the following halide is soluble in water ?




2. Which of the following sulphide is completely precipitated only when the acidic solution is made dilute ?




3. In qualitative analysis of basic radicals hydrochloric acid preferred to nitric acid for preparing a solution of given substance. This is because




4. Which sodium thiosulphate solution is shaken with iodine thiosulphate is changed to




5. Certain inorganic salt when introduced in flame produces crimson red colour. It indicates the presence of




6. Sodium sulphide react with sodium nitroprusside to form a purple colured compund. During the reaction the oxidation state of iron




7. The metal whose salts do not give the borax bead test is




8. Which of the following is soluble in yellow ammonium sulphide ?




9. A metal salt solution forms a yellow precipitate with potassium chromate in acetic acid and a white precipitate with dilute sulphuric acid but gives no precipitate with sodium chloride or iodide. The white precipitate obtained when sodium carbonate is added to the metal salt solution comsists f




10. A moisten salt is rubbed with oxalic acid between the fingers and smells like vinegar. It indicates the presence of




11. Which types of salt produce crackcling noise in dry heating test?




12. Which of the following is not a preliminary test ?




13. A minute quantity of cupric salt is heated on borax bead in reducing foame of bunsen burner the colour of bead aftercooling will be




14. Formation of a rose-red precipitiate when a slightly alkaline solution of an inorganic salt is treated with dimethylglyoxime confirms the presence of




15. Which of the following sulphides has lowest solubility product?




16. Carbonates of the cation of group V are




17. Which of the following is insoluble in AcOH?




18. Which sulphides are soluble only in aqua regia?




19. Sulphuric acid is not used for the preparation of original solution in the analysis of basic radicals because




20. The aqueous solution of which of the following reagent will give prussian blue coloured precipitate with an aqueous solution containing iorn (III) ions.




21. A one litre flask is full of brownbromine vapour. The intensity of brown colour of vapour will not decrease appreciably on adding to the flask some




22. Certain Inorganic salt gives yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in ammonium hydroxide. The solution contains




23. Nitric acid is generally not used for preparation of original solution in analysis of basic radicals because with the scheme of analysis.




24. The salt of which of the following metal gives violet colour in borax bead test?




25. The name of the blue product of the reaction between ferrous ion and ferricyanide ion is




26. A glassy bead formed by heating borax on a platinum wite loop is




27. Which of the following salts does not liberate carbondioxide on treatment with dilute hydrochloric acid?




28. Which of the following precipitate are dirty white in colour?




29. Whcih of the following pairs of reagents will give white precipitate with aqueous solution of sodium chloride?




30. Two colourless solutions are mixed. A white precipitate results which turns black on addition of ammonia. The two solutions are respectively




31. Which of following salt contains two different metal atoms but gives test for only one in the aqueous solution?




32. Which of the followign salts is coloured but gives wihte residue in dry heating test?




33. If ammonium hydroxide solution is added to the aqueous solution of chromium sulphate what will form?




34. The salts of which of the following metal give white residue in charcoal cavity test but ash in cobalt nitrate test?




35. Which performing the flame test the paste of the salt in made in HCl because




36. Whcih of the following is a white powder that is insoluble in water?