NCERT Class 12 Chemistry Solutions Coordination Compounds

NCERT Class 12 Chemistry Solutions Coordination Compounds with answers available in Pdf for free download. The NCERT Solutions for Class 12 Chemistry with answers have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Solutions to questions given in NCERT book for Class 12 Chemistry are an important part of exams for Grade 12 Chemistry and if practiced properly can help you to get higher marks. Refer to more Chapter-wise Solutions for NCERT Class 12 Chemistry and also download more latest study material for all subjects

Coordination Compounds Class 12 NCERT Solutions

Class 12 Chemistry students should refer to the following NCERT questions with answers for Coordination Compounds in standard 12. These NCERT Solutions with answers for Grade 12 Chemistry will come in exams and help you to score good marks

Coordination Compounds NCERT Solutions Class 12

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) 


Students should free download the NCERT solutions and get better marks in exams. Studiestoday.com panel of teachers recommend students to practice questions in NCERT books and download NCERT solutions.

Tags: 

 


Click to View or Download pdf file
Click for more Chemistry Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Online courses for classes XI and XII offered by NCERT

Ministry of Education (MoE), Government of India has launched a platform for offering Massive Open Online Courses (MOOCs) that is popularly known as SWAYAM (Study Webs of Active learning for Young Aspiring Minds) on 9 th July, 2017. NCERT now offers online courses for...

CBSE Science Challenge 2021 22

Science is inexplicably linked with our lives and helps us to understand the world around us better. Scientific and technological developments contribute to progress and help improve our standards of living. By engaging with this subject, students learn to think, solve...

All India Children Educational Audio Video Festival

The Central Institute of Educational Technology (CIET), a constituent unit of National Council of Educational Research and Training (NCERT), is inviting entries for the 26th All India Children’s Educational Audio Video Festival (AICEAVF). This festival showcases the...

Board Exams Date Sheet Class 10 and Class 12

Datesheet for CBSE Board Exams Class 10  (Scroll down for Class 12 Datesheet) Datesheet for CBSE Board Exams Class 12

National Youth Day and Birth Anniversary of Swami Vivekananda

Ministry of Education, Govt. of India vide D.O No. 12-4/2021-IS.4 dated 04.01.2022 intimated that 12 January 2022 will be celebrated as “National Youth Day” and “Birth Anniversary of Swami Vivekananda”.   All Schools affiliated to CBSE may celebrate 12 January 2022 as...

Pariksha Pe Charcha 2022

The 5th edition of Pariskhas Pe Charcha the unique interactive program of Hon’ble Prime Minister with students teaches and parents will be held through virtual mode in February, 2022. In order to select participants who will be featured in Pariksha Pe Charcha programme...