NCERT Solutions Class 12 Chemistry Chapter 9 Coordination Compounds have been provided below and is also available in Pdf for free download. The NCERT solutions for Class 12 Chemistry have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Class 12 by CBSE, NCERT and KVS. Questions given in NCERT book for Class 12 Chemistry are an important part of exams for Class 12 Chemistry and if answered properly can help you to get higher marks. Refer to more Chapter-wise answers for NCERT Class 12 Chemistry and also download more latest study material for all subjects. Chapter 9 Coordination Compounds is an important topic in Class 12, please refer to answers provided below to help you score better in exams
Chapter 9 Coordination Compounds Class 12 Chemistry NCERT Solutions
Class 12 Chemistry students should refer to the following NCERT questions with answers for Chapter 9 Coordination Compounds in Class 12. These NCERT Solutions with answers for Class 12 Chemistry will come in exams and help you to score good marks
Chapter 9 Coordination Compounds NCERT Solutions Class 12 Chemistry
NCERT Class 12 Chemistry Solutions Coordination Compounds - NCERT Solutions prepared for CBSE students by the best teachers in Delhi.
Class XII Chemistry
Chapter 9 – Coordination Compounds
Question 1:
Explain the bonding in coordination compounds in terms of Werner’s postulates.
Answer
Werner’s postulates explain the bonding in coordination compounds as follows:
(i) A metal exhibits two types of valencies namely, primary and secondary valencies. Primary valencies are satisfied by negative ions while secondary valencies are satisfied by both negative and neutral ions.
(In modern terminology, the primary valency corresponds to the oxidation number of the metal ion, whereas the secondary valency refers to the coordination number of the metalion.
(ii) A metal ion has a definite number of secondary valencies around the central atom. Also, these valencies project in a specific direction in the space assigned to the definite geometry of the coordination compound.
(iii) Primary valencies are usually ionizable, while secondary valencies are non-ionizable.
Question 2:
Explain with two examples each of the following: coordination entity, ligand, coordination number, coordination polyhedron, homoleptic and heteroleptic.
Answer
(i) Coordination entity: A coordination entity is an electrically charged radical or species carrying a positive or negative charge. In a coordination entity, the central atom or ion is surrounded by a suitable number of neutral molecules or negative ions ( called ligands).
(ii) Ligands: The neutral molecules or negatively charged ions that surround the metal atom in a coordination entity or a coordinal complex are known as ligands.
(iii) Coordination number: The total number of ligands (either neutral molecules or negative ions) that get attached to the central metal atom in the coordination sphere is called the coordination number of the central metal atom. It is also referred to as its ligancy.
Question 3:
Using IUPAC norms write the formulas for the following:
(i) Tetrahydroxozincate(II)
(ii) Potassium tetrachloridopalladate(II)
(iii) Diamminedichloridoplatinum(II)
(iv) Potassium tetracyanonickelate(II)
(v) Pentaamminenitrito-O-cobalt(III)
(vi) Hexaamminecobalt(III) sulphate
(vii) Potassium tri(oxalato)chromate(III)
(viii) Hexaammineplatinum(IV)
(ix) Tetrabromidocuprate(II)
(x) Pentaamminenitrito-N-cobalt(III)
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NCERT Solutions Class 12 Chemistry Chapter 9 Coordination Compounds
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Chapter 9 Coordination Compounds Class 12 Chemistry NCERT Solutions
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NCERT Solutions Chapter 9 Coordination Compounds Class 12 Chemistry
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Chapter 9 Coordination Compounds Class 12 NCERT Solution Chemistry
These solutions of Chapter 9 Coordination Compounds NCERT Questions given in your textbook for Class 12 Chemistry have been designed to help students understand the difficult topics of Chemistry in an easy manner. These will also help to build a strong foundation in the Chemistry. There is a combination of theoretical and practical questions relating to all chapters in Chemistry to check the overall learning of the students of Class 12.
Class 12 NCERT Solution Chemistry Chapter 9 Coordination Compounds
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