CBSE Class 12 Chemistry Coordination Compounds Question Bank Set A

Read and download free pdf of CBSE Class 12 Chemistry Coordination Compounds Question Bank Set A. Download printable Chemistry Class 12 Worksheets in pdf format, CBSE Class 12 Chemistry Unit 9 Coordination Compounds Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

Unit 9 Coordination Compounds Chemistry Worksheet for Class 12

Class 12 Chemistry students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Chemistry will be very useful for tests and exams and help you to score better marks

Class 12 Chemistry Unit 9 Coordination Compounds Worksheet Pdf

Co-ordination compounds
 
1 Define the following:
 
(i) Co-ordination compounds ;
 
(ii) Ligand ; Ambidendate ligand ;
 
(iii) Co-ordination number
 
(iv) Oxidation number ;
 
(v) Denticity ;
 
(vi) Co-ordination polyhedron ;
 
(vii) Chelating agents
 
(viii) Chelate compounds;
 
(ix) Isomerism;
 
(x) CFSE;
 
(xi) Spectrochemical series
 
2 Write the IUPAC name and denticity of the following ligands:
MH3; H2O; NO; CO; X-; OH-; cyanide ion; nitrite ion; thiocyante ion; CO32-; SO42-;O2-; en; dien; trine;oxalate ion; dmg; EDTA3-; EDTA4-; o-phenanthroline; pyridine
 
3 Explain the following types of isomerism with suitable examples:
 
(i) Ionisation
 
(ii) co-ordination
 
(iii) linkage
 
(iv) hydrate
 
(v) cis-trans in square planar and octahedral complexes
 
(vi) facial and meridional
 
(vii) optical isomerism
 
4 Give the salient features of Werner’s theory of complexes. Mention two limitations.
 
5 On the basis of VB theory, explain the geometry and magnetic properties of the following complexes.
 
(i) [Cr (NH3)6]3+ ;
 
(ii) [Cr (H2O)6]3+;
 
(iii) [Fe(CN)6]3-;
 
(iv) [Co (NH3)6 ]3+;
 
(v) [CoF6]3- ;
 
(vi) [Ni(CO)4];
 
(vii) [Ni(CN)4]2- ;
 
(viii) [Cu(NH3)4]2+ ;
 
(ix) [PtCl4]2- ;
 
(x) [Pt(CN)4]2-
 
6 Give the salient features of Crystal field theory.
 
7 On the basis of CFT, explain formation of a) octahedral complex   b) tetrahedral complex.
 
8 Explain the conditions under which a high/low spin octahedral complex would be formed.
 
9 Give reasons:
 
a) [Fe(H2O)6]2+ is a high spin complex while [Fe(CN)6]4- is a low spin complex.
 
b) Complexes of 3rd transition series are generally low spin complexes.
 
c) Complexes with 4-7 d electrons are more stable with strong ligands than with weak ligands.
 
d) [CoF6]3- is a high spin complex while [Co(NH3)6]3+ is a low spin complex.
 
e) Mn2+ is aq solution is colourless.
 
f) All tetrahedral complexes are of high spin.
 
g) [Co(H2O)6]3+ is pink while [CoCl4]2- is blue.
 
10 Explain the bonding in carbonyls with suitable examples:
 
11 Give the structure of
 
(i) [Ni(CO)4];
 
(ii) [Fe(CO)5];
 
(iii) [Mo (CO)6] ;
 
(iv) [Mn2 (CO)10] ;
 
(v) [Fe2(CO)9] ;
 
(vi) [Co2(CO)8
 
12 Give applications of complexes in
 
(i) biological systems
 
(ii) qualitative analysis
 
(iii) metallurgy
 
(iv) medicine
 
(v) organic synthesis
 
(vi) photography
 
(vii) catalyst
 
13 Explain the following terms:
 
(i) Crystal field splitting in an octahedral field
 
(ii) Spectrochemical series
 
14 For the complex [Fe(en)2Cl2]Cl, identify (Fe = 26), Identify
 
(i) The oxidation number of Fe
 
(ii) The magnetic behaviour of the complex
 
(iii) Hybridisation of Fe
 
(iv) The number of geometrical isomers possible
 
(v) Whether optical isomer is possible or not?
 
(vi) Name of the complex
 
15 Write three Shortcomings of valence bond theory:
 
16 Explain on the basis of valence bond theory that [Ni(CN)4]2– ion with square planar structure is diamagnetic and the [NiCl4]2– ion with tetrahedral geometry is paramagnetic.


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CBSE Class 12 Chemistry Unit 9 Coordination Compounds Worksheet

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