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Salt Analysis

33 questions · Chemistry · JEE Main
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Salt Analysis

33 questions · Chemistry · JEE Main

  1. Choose the correct tests with respective observations. (A) CuSO4​(acidified with acetic acid) +K4​[Fe(CN)6​]→ Chocolate brown precipitate. (B) FeCl3​+K4​[Fe(CN)6​]→…2025 · 2 Apr · Shift 1 · Q6 · MCQ
  2. Formation of Na4​[Fe(CN)5​NOS], a purple coloured complex formed by addition of sodium nitroprusside in sodium carbonate extract of salt indicates the presence of :2025 · 2 Apr · Shift 2 · Q13 · MCQ
  3. Compounds that should not be used as primary standards in titrimetric analysis are : A. Na2​Cr2​O7​ B. Oxalic acid C. NaOH D. FeSO4​⋅6H2​O E. Sodium tetraborate Choose the…2025 · 3 Apr · Shift 2 · Q18 · MCQ
  4. Given below are two statements : Statement I : Mohr's salt is composed of only three types of ions-ferrous, ammonium and sulfate. Statement II : If the molar conductance at infinite dilution for ferrous, ammonium and sulfate ions are x1​,x2​…2025 · 7 Apr · Shift 1 · Q12 · MCQ
  5. When a salt is treated with sodium hydroxide solution it gives gas X . On passing gas X through reagent Y a brown coloured precipitate is formed. X and Y respectively, are2025 · 7 Apr · Shift 1 · Q17 · MCQ
  6. Which of the following compounds is least likely to give effervescence of CO2​ in presence of aq. NaHCO3​?2025 · 7 Apr · Shift 1 · Q5 · MCQ
  7. Match the LIST-I with LIST-II Choose the correct answer from the options given below: Includes table2025 · 8 Apr · Shift 2 · Q19 · MCQ
  8. Given below are two statements : Statement (I) : Nitrogen, sulphur, halogen and phosphorus present in an organic compound are detected by Lassaigne's Test. Statement (II) : The elements present in the compound are converted from covalent…2025 · 22 Jan · Shift 2 · Q7 · MCQ
  9. Identify A, B and C in the given below reaction sequence Includes diagram2025 · 23 Jan · Shift 2 · Q13 · MCQ
  10. Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K4​[Fe(CN)6​] is ​. Cu2+,Fe3+,Ba2+,Ca2+,NH4+​,Mg2+,Zn2+…2025 · 24 Jan · Shift 1 · Q22 · Numerical
  11. ​ Find the compound ’ A ’ from the following reaction sequences. A aqua-regia ​B (1) KNO2​∣NH4​OH (2) AcOH​ yellow ppt ​…2025 · 24 Jan · Shift 2 · Q3 · MCQ
  12. Identify the inorganic sulphides that are yellow in colour : (A) (NH4​)2​S(B) PbS(C) CuS(D) As2​S3​(E) As2​S5​ Choose the correct answer from the options given below :2025 · 28 Jan · Shift 2 · Q16 · MCQ
  13. In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :2024 · 4 Apr · Shift 1 · Q7 · MCQ
  14. Match List I with List II Choose the correct answer from the options given below: Includes table2024 · 6 Apr · Shift 1 · Q8 · MCQ
  15. During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in NH4​OH solution when sodium carbonate extract was first acidified with dil. HNO3​…2024 · 6 Apr · Shift 2 · Q3 · MCQ
  16. Match List I with List II Choose the correct answer from the options given below: Includes table2024 · 8 Apr · Shift 1 · Q10 · MCQ
  17. Appearance of blood red colour, on treatment of the sodium fusion extract of an organic compound with FeSO4​ in presence of concentrated H2​SO4​ indicates the presence of element/s2024 · 29 Jan · Shift 1 · Q18 · MCQ
  18. Formation of which complex, among the following, is not a confirmatory test of Pb2+ ions :2023 · 6 Apr · Shift 2 · Q1 · MCQ
  19. When a solution of mixture having two inorganic salts was treated with freshly prepared ferrous sulphate in acidic medium, a dark brown ring was formed whereas on treatment with neutral FeCl3​, it gave deep red colour which…2023 · 11 Apr · Shift 1 · Q8 · MCQ
  20. In the wet tests for detection of various cations by precipitation, Ba2+ cations are detected by obtaining precipitate of2023 · 13 Apr · Shift 2 · Q2 · MCQ
  21. Match the List-I with List-II : Correct match is - Includes table2023 · 25 Jan · Shift 1 · Q13 · MCQ
  22. Match List I with List II Choose the correct answer from the options given below : Includes table2023 · 25 Jan · Shift 1 · Q6 · MCQ
  23. In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group IV in qualitative inorganic analysis?2023 · 30 Jan · Shift 1 · Q3 · MCQ
  24. During the qualitative analysis of salt with cation y2+, addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the cation (y2+) present respectively are :2022 · 24 Jun · Shift 1 · Q12 · MCQ
  25. In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?2022 · 24 Jun · Shift 2 · Q14 · MCQ
  26. During halogen test, sodium fusion extract is boiled with concentrated HNO3​ to2022 · 25 Jun · Shift 2 · Q10 · MCQ
  27. A white precipitate was formed when BaCl2​ was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in…2022 · 29 Jun · Shift 2 · Q13 · MCQ
  28. Cu2+ salt reacts with potassium iodide to give2021 · 20 Jul · Shift 2 · Q14 · MCQ
  29. Given below are two statements : Statement I : The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH4​OH. Statement II : The dimethyl glyoxime is a bidentate neutral ligand. In the light of the above…2021 · 25 Feb · Shift 2 · Q9 · MCQ
  30. To an aqueous solution containing ions such as Al3+, Zn2+, Ca2+, Fe3+, Ni2+, Ba2+ and Cu2+ was added conc. HCl, followed by H2​S. The total number of cations precipitated during this reaction is/are :2021 · 27 Jul · Shift 2 · Q6 · MCQ
  31. Match the following : Includes table2020 · 6 Sep · Shift 2 · Q13 · MCQ
  32. A solution of m-chloronailimne, m-chlorophenol and m-chlorobenzoic acid in ethyal acetate was extracted initially with a saturated solution of NaHCO3​ to give fraction A. The left over organic phase was extracted with dilute NaoH…2020 · 7 Jan · Shift 1 · Q17 · MCQ
  33. A solution containing a group-IV cation gives a precipitate on passing H2​S. A solution of this precipitate in dil.HCl produces a white precipitate with NaOH solution and bluish-white precipitate with basic potassium ferrocyanide.…2017 · 8 Apr · Shift 1 · Q7 · MCQ