CBSE Class 12 Chemistry Coordination Compounds Worksheet Set 03

Official Class 12 Chemistry Worksheets: Unit 5 Coordination Compounds

Explore structured practice materials through the CBSE Class 12 Chemistry Coordination Compounds Worksheet Set 03. Tailored for Class 12 learners, utilizing these Chemistry worksheets ensures thorough preparation and strengthens problem-solving accuracy before final school evaluations.

Solved Practice Worksheets for Chemistry

Access the complete worksheet PDF for Class 12 Chemistry below. Regular practice with these targeted academic tasks builds familiarity with standard question patterns and helps secure higher marks in final school examinations.

Very Short Answer Questions

Question: When a co-ordination compound CrCl3⋅6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write IUPAC name of the complex.
Answer: IUPAC name of the complex
[CrCl(H2O)5]Cl2 ·H2O is :
pentaaquachloridochromium (III) chloride.

Question: Give an example of linkage isomerism.
Answer: [Co(NH3)5(NO2)]Cl2 and [Co(NH3)5(ONO)]Cl2

Question: Name the following coordination compound :
K3[CrF6]
Answer: Potassium hexafluoridochromate (III).

Question: What is a ligand? Give an example of a bidentate ligand.
Answer: The ions or molecules bonded to the central atom in the coordination entity are called ligands. Ethylene diammine is a bidentate ligand.

Question: Write the IUPAC name of
[Cr(NH3)6 [Co(CN)6].
Answer: Hexaamminechromium (III) hexacyanocobaltate (III).

Question: Give an example of coordination isomerism.
Answer: [Co(NH3)6][Cr(CN)6] and [Cr (NH3)6] [Co(CN)6]

Question: Explain the following term giving a suitable example :
Crystal field splitting in an octahedral field.
Answer: The splitting of the degenerate d-orbitals into three orbitals of lower energy, t2g set and two orbitals of higher energy eg set due to the interaction of ligand in an octahedral crystal field is known as crystal field splitting in an octahedral field.

Question: Using the IUPAC norms, write the systematic name of the following :
[Co(NH3)6] [Cr(CN)6]
Answer: Hexaamminecobalt (III) hexacyanochromate (III)

Question: Why is CO a stronger ligand than Cl–?
Answer: Because CO has vacant molecular orbitals with which it can form p-bond with metal through back donation.

Question: Give an example of ionization isomerism.
Answer: [Co(NH3)5SO4]Br and [Co(NH3)5 Br] SO4

Question: Write the IUPAC name of the complex [Cr(NH3)4Cl2]Cl.
Answer: IUPAC name of the complex [Cr(NH3)4Cl2]Cl is tetraamminedichloridochromium (III) chloride.

Question: Give IUPAC name of ionisation isomer of [Ni(NH3)3NO3]Cl.
Answer: Ionisation isomer of [(Ni(NH3)3NO3]Cl is [Ni(NH3)3Cl]NO3. The IUPAC name of this complex is triamminechloridonickel (II) nitrate.

Question: Write the IUPAC name of
[PtCl(NH2CH3)(NH3)2]Cl.
Answer: Diamminechlorido (methylamine) platinum (II) chloride.

Question: Give two examples of coordination compounds used in industries.
Answer: (i) EDTA is used for water sofiening and in purification of metals.
(ii) Wilkinson’s catalyst is used as catalyst for hydrogenation.

Question: Write down the formula of :
Tetraamineaquachloridocobalt (III) chloride.
Answer: [Co(NH3)4(H2O)(Cl)]Cl2

Question: Give names of two complexes which are used in medicines
Answer: cis-Platin is used in the treatment of cancer.
EDTA is used in lead poisoning.

Question: Write the IUPAC name of [Pt(NH3)4Cl2]Cl2.
Answer: Tetraamminedichloridoplatinum (IV) chloride


Short Answer Questions

Question: Name the following coordination compounds according to IUPAC system of nomenclature :
(i) [Co(NH3)4(H2O)Cl]Cl2
(ii) [CrCl2(en)2]Cl, (en = ethane – 1,2-diamine)
Answer: (i) Hexaamminecobalt (III) chloride
(ii) Tetrachloridonickelate (II) ion
(iii) Potassiumhexacyanoferrate (III)

Question: Name the following coordination compounds and draw their structures.
(i) [CoCl2(en)2]Cl
(ii) [Pt(NH3)2Cl(NO2)]
(At. No. Co = 27, Pt = 78)
Answer: (i) Dichloridobis (ethane-1, 2-diamine)cobalt (III) chloride.

Question: (i) Write down the IUPAC name of the following complex. [Cr (en)3]Cl3
(ii) Write the formula for the following complex. Potassium trioxalato chromate (III)
Answer: Tris (ethylenediammine) chromium (III) chloride
(ii) K3[Cr(ox)3]

Question: Write the IUPAC name of the following :
(i) [Co(NH3)6]Cl3 (ii) [NiCl4]2–
(iii) K3[Fe(CN)6]
Answer: (i) Tetraammineaquachloridocobalt(III) chloride
(ii) Dichloridobis(ethane-1,2-diamine)cobalt(III) chloride

Question: Write the name, the structure and the magnetic behaviour of each one of the following complexes :
(i) [Pt(NH3)Cl(NO2)] (ii) [Co(NH3)4Cl2]Cl
(iii) Ni(CO)4
(At. nos. Co = 27, Ni = 28, Pt = 78)
Answer: (i) [Pt(NH3)2Cl(NO2)] :
Diamminechloridonitrito-N-platinum(II)
It is square planar and diamagnetic.
(ii) [Co(NH3)4Cl2]Cl : Tetraamminedichloridocobalt
(III) chloride It is octahedral and diamagnetic.
(iii) Ni(CO)4 : Tetracarbonylnickel(0)
It is tetrahedral and diamagnetic

Free study material for Chemistry

Free CBSE Practice Worksheets: Class 12 Chemistry Unit 5 Coordination Compounds

Daily Practice Questions for Class 12 Chemistry

Explore reliable practice questions for Unit 5 Coordination Compounds tailored for Class 12 Chemistry learners. Use these structured worksheets to evaluate exam preparedness and strengthen problem-solving skills throughout the 2026 academic session.

Detailed Answers for Class 12 Chemistry Unit 5 Coordination Compounds

Each worksheet draws directly from authorized standard textbooks to maintain academic accuracy. Evaluating your finished exercises against expert-verified solutions helps master the formal presentation standards expected in school evaluations.

Complete Your Chapter Revision

Wrap up your chapter revision by testing your knowledge against standard objective question formats. Explore our full library of free, up-to-date printable assignments to maximize your academic results in upcoming CBSE evaluations.

FAQs

Where can I download the 2026-27 CBSE printable worksheets for Class 12 Chemistry Unit 5 Coordination Compounds?

You can download the latest chapter-wise printable worksheets for Class 12 Chemistry Unit 5 Coordination Compounds for free from StudiesToday.com. These have been made as per the latest CBSE curriculum for this academic year.

Are these Unit 5 Coordination Compounds Chemistry worksheets based on the new competency-based education (CBE) model?

Yes, Class 12 Chemistry worksheets for Unit 5 Coordination Compounds focus on activity-based learning and also competency-style questions. This helps students to apply theoretical knowledge to practical scenarios.

Do the Class 12 Chemistry Unit 5 Coordination Compounds worksheets have answers?

Yes, we have provided solved worksheets for Class 12 Chemistry Unit 5 Coordination Compounds to help students verify their answers instantly.

Can I print these Unit 5 Coordination Compounds Chemistry test sheets?

Yes, our Class 12 Chemistry test sheets are mobile-friendly PDFs and can be printed by teachers for classroom.

What is the benefit of solving chapter-wise worksheets for Chemistry Class 12 Unit 5 Coordination Compounds?

For Unit 5 Coordination Compounds, regular practice with our worksheets will improve question-handling speed and help students understand all technical terms and diagrams.