Q33.The potassium ferrocyanide solution gives a Prussian blue colour, when added to : (1) CoCl3 (2) CoCl2 (3) FeCl2 (4) FeCl3
What This Question Tests
This question tests the recall of a standard qualitative test for ferric ions (Fe³⁺) using potassium ferrocyanide, which forms a characteristic Prussian blue precipitate.
Concepts Tested
Formulas Used
Fe³⁺ + [Fe(CN)₆]⁴⁻ → Fe₄[Fe(CN)₆]₃
📚 NCERT Sections This Tests
5.15 — Discuss The Nature Of Bonding In The Following Coordination Entities On The
Chemistry Class 11 · Chapter 5
5.15 Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory: (i) [Fe(CN)6] 4– (ii) [FeF6] 3– (iii) [Co(C2O4)3]3– (iv) [CoF6] 3–
5.13 — Aqueous Copper Sulphate Solution (Blue In Colour) Gives:
Chemistry Class 11 · Chapter 5
5.13 Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.
5.28 — How Many Ions Are Produced From The Complex Co(Nh3)6Cl2 In Solution?
Chemistry Class 11 · Chapter 5
5.28 How many ions are produced from the complex Co(NH3)6Cl2 in solution? (i) 6 (ii) 4 (iii) 3 (iv) 2 139 Coordination Compounds Reprint 2025-26
📋 Question Details
- Chapter
- Coordination Compounds
- Topic
- Qualitative Tests of Metal Ions
- Year
- 2021
- Shift
- 01 Sep Shift 2
- Q Number
- Q33
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 9: Coordination Compounds
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