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Indian Navy SSR Coordination Compounds — practice questions

Explore 29 free Coordination Compounds questions in Indian Navy SSR Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Coordination Compounds questions and exercises with answers

Showing questions 1–29 of 29.

Coordination number is:Read the answer and worked solution →In [Co(NH₃)₆]Cl₃, the number of ionizable Cl⁻ in solution is:Read the answer and worked solution →The coordination number 6 most commonly gives which geometry?Read the answer and worked solution →Sort each ligand by how many donor atoms it usesRead the answer and worked solution →Match each term to its definitionRead the answer and worked solution →True or false: coordination numberRead the answer and worked solution →Counting the coordination numberRead the answer and worked solution →Match each complex to its shapeRead the answer and worked solution →Sort each complex by its geometryRead the answer and worked solution →Complete the coordination sphere ruleRead the answer and worked solution →True or false: ambidentate ligandsRead the answer and worked solution →Chelate or ambidentate?Read the answer and worked solution →Complete the definition of oxidation numberRead the answer and worked solution →Match each theory to what it explainsRead the answer and worked solution →Tap every failing of Valence Bond TheoryRead the answer and worked solution →True or false: the theories and their limitsRead the answer and worked solution →Complete Werner's postulateRead the answer and worked solution →Synergic bonding in metal carbonylsRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Order the steps: read a formula like K₄[Fe(CN)₆]Read the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Tap every statement true of a chelate complexRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: where coordination chemistry mattersRead the answer and worked solution →Inside the brackets or outside?Read the answer and worked solution →Spot the odd one outRead the answer and worked solution →

Worked practice questions

Coordination number is:

  1. Number of donor atoms directly bonded to central metal
  2. Charge on metal
  3. Number of electrons
  4. Number of ligands
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Correct answer: A. Number of donor atoms directly bonded to central metal

Coordination number = number of donor atoms (not ligands!) directly bonded to the metal. For polydentate ligands, one ligand contributes multiple donor atoms. **Typical CN:** 4 (tetrahedral/square planar), 6 (octahedral).

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In [Co(NH₃)₆]Cl₃, the number of ionizable Cl⁻ in solution is:

  1. 1
  2. 0
  3. 2
  4. 3 (all Cl⁻ are outside coordination sphere)
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Correct answer: D. 3 (all Cl⁻ are outside coordination sphere)

[Co(NH₃)₆]Cl₃ → [Co(NH₃)₆]³⁺ + 3 Cl⁻ in water. All 3 Cl⁻ are counter ions, not coordinated. **So gives precipitate of 3 AgCl with AgNO₃.**

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The coordination number 6 most commonly gives which geometry?

  1. Tetrahedral, with 109.5° angles
  2. Octahedral, with 90° angles
  3. Square planar, with 90° angles
  4. Linear, with 180° angle
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Correct answer: B. Octahedral, with 90° angles

CN 6 → octahedral (most common in coordination chemistry). 4 → tetrahedral or square planar. 2 → linear (e.g., Ag(NH3)2⁺).

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