CBSE Class 12th Chemistry Chapter 5 - Coordination Compounds Important Questions with Answers

You should focus on solving CBSE Class 12th Chemistry Chapter 5: Coordination Compounds important questions, especially to help you score high marks. By solving CBSE Class 12th Chemistry 5 questions, you will be solving exam-oriented questions only.
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Coordination compounds play a vital role in both chemistry and real-world applications, from biological systems to industrial processes. Chapter 5 – Coordination Compounds in CBSE Class 12 Chemistry explores the fascinating world of metal complexes, their structures, properties, and significance. This chapter provides a deep understanding of how transition metals form complex compounds with ligands, leading to unique chemical behaviors. In this chapter, students learn about essential concepts such as ligands, coordination number, Werner’s theory, isomerism in coordination compounds, bonding theories, and stability of complexes. These concepts elucidate the stability mechanisms of metal-molecule bonds because they are vital for the advancements in medical practices together with catalytic processes and industrial metal applications. Studying coordination compounds reveals their essential role in biological functions because they appear in blood-based hemoglobin and chlorophyll-containing plants. This chapter's comprehension has become easier with the collection of theoretical and numerical coordination chemistry questions and their corresponding answers. The purpose of these questions is to help students develop a better understanding of conceptual material and problem-solving techniques for board exam success.

The questions in this study material consist of objectives, short answers, longer responses, and numerical problems about coordination compounds to provide students with complete preparation. Students who practice these essential questions will acquire both a solid understanding and application skills for coordination chemistry principles. These questions serve to deeply examine the chapter through tests about ligand identification along with geometric predictions and complex color and magnetic characteristics queries. The set of CBSE Class 12 Chemistry Chapter 5 important questions with answers functions as an essential study tool for students dedicated to reaching high marks in their board exams. Studying this material will improve learners' understanding of inorganic chemistry as a base for more advanced college education and tests including JEE and NEET competitions. Prepare thoroughly with the most important questions of CBSE Class 12th Chemistry Chapter 5 - Coordination Compounds. You can first cover the CBSE Class 12th Chemistry syllabus to understand the key topics and then start solving the CBSE Class 12th Chemistry Chapter 5 - Coordination Compounds Important Questions to get a better understanding of your preparation level. Start practicing now.

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Question 1.

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Why are low spin tetrahedral complexes not formed? (Comptt. Delhi 2017)

Question 2.

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Write IUPAC name of the complex: [CoCl2(en)2]+ (Comptt. All India 2017)

Question 3.

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Write IUPAC name of the complex [Co(NH3)4Cl(NO2)]+. (Comptt. All India 2017)

Question 4.

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Write IUPAC name of the complex: [CoCl2(en2)]+ (Comptt. All India 2017)

Question 5.

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Using IUPAC norms write the formulae for the following:
(i) Sodium dicyanidoaurate (I)
(it) Tetraamminechloridonitrito-N-platinum (IV) sulphate (Delhi 2017)

Question 6.

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Using IUPAC norms write the formulae for the following:
(a) Tris(ethane-1,2-diamine) chromium (III) chloride
(b) Potassium tetrahydroxozincate(II) (All India 2017)

Question 7.

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Using IUPAC norms write the formulae for the following:
(a) Potassium trioxalatoaluminate (III)
(b) Dichloridobis(ethane-l, 2-diamine) cobalt (III) (All India 2017)

Question 8.

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(i) What type of isomerism is shown by the complex [Co(NH3)6][Cr(CN)6]?
(ii) Why a solution of [Ni(H2O)6]2+ is green while a solution of [Ni(CN)4]2- is colourless? (At. no. of Ni = 28)
(iii) Write the IUPAC name of the following complex: [CO(NH3)5(CO3)]Cl. (Delhi 2017)

Question 9.

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(i) What type of isomerism is shown by the complex [Co(en)3]Cl3?
(ii) Write the hybridisation and magnetic character of [Co(C2O4)3]3-.
(At. no. of Co = 27)
(iii) Write IUPAC name of the following complex: [Cr(NH3)3Cl3] (Delhi 2017)

Question 10.

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(a) What type of isomerism is shown by the complex [Co(NH3)5 (SCN)]2+?
(b) Why is [NiCl24]2- paramagnetic while [Ni(CN)4]2- is diamagnetic? (Atomic number of Ni = 28)
(c) Why are low spin tetrahedral complexes rarely observed? (All India 2017)
Great Job! continue working on more practice questions?

Question 1.

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For the complex ion [CoF6]3- write the hybridization type, magnetic character and spin nature. [Atomic number: Co = 27] (Comptt. Delhi 2017)

Question 2.

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For the complex ion [Ni(CN)4]2- write the hybridization type, magnetic character and spin nature. [Atomic No.: Ni = 28] (Comptt. Delhi 2017)

Question 3.

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For the complex ion [Fe(en)2Cl2]+ write the hybridization type and magnetic behaviour. Draw one of the geometrical isomer of the complex ion which is optically active. [Atomic No.: Fe = 26] (Comptt. All India 2017)

Question 4.

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For the complex ion [CoCl2(en)2]+ write hybridization type and spin behaviour. Draw one of the geometrical isomers of the complex ion which is optically active. [Atomic No.: Co = 27] (Comptt. All India 2017)

Question 5.

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When a coordination compound CrCl3.6H2O is mixed with AgNO3 solution, 3 moles of AgCl are precipitated per mole of the compound. Write :
(i) Structural formula of the complex
(ii) IUPAC name of the complex
(iii) Magnetic and spin behaviour of the complex (Comptt. All India 2017)

Question 6.

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Write the IUPAC name of the following complex : [CO(NH3)6]3+ (Comptt. Delhi 2016)

Question 7.

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Write the IUPAC name of the following coordination compound [NiCl4]2-. (Comptt. All India 2016)

Question 8.

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When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write
(i) Structural formula of the complex.
(ii) IUPAC name of the complex. (Delhi 2016)

Question 9.

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When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write
(i) Structural formula of the complex
(ii) IUPAC name of the complex (All India 2016)

Question 10.

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(a) For the complex [Fe(CN)6]3- write the hybridization type, magnetic character and spin nature of the complex. (At. number: Fe = 26).
(b) Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+ which is optically active. (Delhi 2016)
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