Top Strategies to Score High in JEE Main Coordination Compounds Mock Tests
Coordination Compounds is a pivotal chapter in JEE Chemistry, testing your grasp on complex ion formation, nomenclature, and bonding theories. This mock test is designed to reinforce your understanding of concepts like isomerism, valence bond theory, and color/magnetism in complexes. Attempt this interactive test to boost accuracy and master key patterns found in recent JEE exams.
Mock Test Instructions for the Coordination Compounds Mock Test 1:
- 20 questions from Coordination Compounds Mock Test 1
- Time limit: 20 minutes
- Single correct answer per question
- Correct answers appear in bold green after submission
How Can JEE Mock Tests Help You Master Coordination Compounds?
- Identify and overcome confusion in IUPAC nomenclature and oxidation state assignments.
- Pinpoint and practice complex isomerism-based questions frequently asked in JEE.
- Track accuracy in understanding chelation, ambidentate ligands, and linkage isomerism.
- Strengthen knowledge on color, magnetism, and hybridization in transition metal complexes.
- Utilize time-bound tests to build confidence and improve question-solving speed under pressure.
Boost Your Coordination Compounds Problem-Solving Skills with Expert-Designed JEE Mock Tests
- Confront real JEE-level MCQs on Werner’s theory, bonding, and the EAN rule.
- Practice application-based questions based on previous year exam patterns.
- Refine concepts on color origin and electronic transitions through targeted practice.
- Mock tests reveal strengths and weaknesses in chapter subtopics, guiding your revision.
- Instant test feedback aids topic-wise improvement and last-minute preparation strategy.
Subject-Wise Excellence: JEE Main Mock Test Links
| S.No. | Subject-Specific JEE Main Online Mock Tests |
|---|---|
| 1 | Online FREE Mock Test for JEE Main Chemistry |
| 2 | Online FREE Mock Test for JEE Main Maths |
| 3 | Online FREE Mock Test for JEE Main Physics |
Important Study Materials Links for JEE Exams
FAQs on Coordination Compounds Mock Test for JEE Main 2025-26 Preparation
1. What is a coordination compound?
Coordination compounds are chemical compounds consisting of a central metal atom or ion surrounded by a set of molecules or ions known as ligands. The ligands are bonded to the central atom through coordinate covalent bonds. These compounds play an important role in inorganic chemistry and are commonly found in biological systems and industrial applications.
2. How do you write the formula for coordination compounds?
To write the formula for a coordination compound:
- First, write the central metal atom/ion symbol.
- Add the formulae of ligands in square brackets, listing neutral ligands before anionic ligands and in alphabetical order for ligands of the same charge.
- Write the charge outside the brackets if needed (for complex ions).
- If required, add the counter ion(s) outside the square brackets to balance the charge.
For example: [Fe(CN)6]4− or [Co(NH3)6]Cl3.
3. Give some examples of coordination compounds.
Some common examples of coordination compounds include:
- Potassium ferrocyanide: K4[Fe(CN)6]
- Hexaamminecobalt(III) chloride: [Co(NH3)6]Cl3
- Tetraamminecopper(II) sulfate: [Cu(NH3)4]SO4
- Dichlorobis(ethylenediamine)chromium(III) nitrate: [Cr(en)2Cl2]NO3
4. Is coordination compounds an easy chapter?
The Coordination Compounds chapter is considered moderately easy for most students preparing for JEE, NEET, and other entrance exams, as long as the basic concepts of Bonding, Nomenclature, Isomerism, and Valence are clear. With regular practice and conceptual clarity, most students can master this topic.
5. What is the importance of coordination compounds in everyday life?
Coordination compounds are widely used in medicine (e.g., cisplatin as an anti-cancer drug), photography, extraction of metals, analytical chemistry (complexometric titrations), and as pigments and dyes. Many enzymes in biological systems, like hemoglobin, are also coordination compounds.
6. What are ligands in coordination compounds?
A ligand is an ion or molecule capable of donating a pair of electrons to a central metal atom/ion to form a coordinate covalent bond. Ligands can be classified as monodentate (one donor atom), bidentate (two donor atoms), or polydentate (many donor atoms), as seen in EDTA and en (ethylenediamine).
7. How do you name coordination compounds according to IUPAC rules?
Naming coordination compounds (IUPAC):
- Name the ligands first in alphabetical order, then the central metal.
- Use prefixes (di-, tri-, etc.) to show number of ligands.
- Anionic ligands have an 'o' ending, neutral ligands keep their name.
- If the complex is an anion, add '-ate' to the metal.
- Show the oxidation state of the central atom in Roman numerals in parenthesis.
8. What are isomers in coordination compounds?
Isomers are compounds with the same molecular formula but different arrangement of atoms. In coordination compounds, the two main types are structural isomerism (linkage, ionisation, coordination, hydrate isomerism) and stereoisomerism (geometrical and optical isomerism).
9. How do you determine the oxidation state of the central metal in a coordination compound?
To determine the oxidation state of the central metal:
- Assign known charges to all ligands and counter ions.
- Let the oxidation state of the metal be x.
- Write and solve the algebraic equation so that the sum of all charges equals the charge on the complex ion or the total compound.
For example, in [Fe(CN)6]4−, each CN− = –1, total –6, so x – 6 = –4, thus x = +2.
10. What is crystal field theory in coordination compounds?
The Crystal Field Theory (CFT) explains the bonding and energies in coordination compounds. It describes the interaction between the d-orbitals of the central metal ion and the electric fields produced by ligands, resulting in splitting of d-orbitals. This explains the color, magnetism, and stability of different coordination complexes.
11. Are coordination compounds important for JEE/NEET/EAMCET/CUET/MHT CET?
Yes, coordination compounds are a high-weightage topic for JEE, NEET, EAMCET, CUET, and MHT CET. Questions commonly appear from nomenclature, isomerism, bonding theories, and applications. Regular solving of mock tests and previous year questions is recommended.
12. What are some common applications of coordination compounds?
Common applications of coordination compounds include:
- Medicinal chemistry: Metal complexes like cisplatin are used as anti-cancer agents.
- Industrial processes: Extraction, purification of metals (e.g., use of cyanide in gold extraction).
- Photography: Silver coordination compounds are used in photographic films.
- Analytical chemistry: Complexometric titrations to estimate hardness of water.
- Biological systems: Vitamin B12, hemoglobin, and chlorophyll are natural coordination compounds.
