Answer Q87, 88, 89 showing detailed explanations. Directions summarisedAB1,2,31,22,3OnlyAllOnlyOnlycorrectcorrectcorrectcorrect o Scandium and Zinc are not considerentransition elements because they1 do not form complexes2 exist only in one oxidation statedo not form ions in which the 34.84 The olements in between Sc-Zn1.all show paramagnetism2 form ocloured hydrated ions in aqueoussolution3.3. form ions that hive incompletely filled3d-subshell.subshell is partially filled.92 d-biock element85 This question relates to compounds ofchromium1.have variable oxidation state1.their +2 oxidation state is common at2.the beginning of the series.3. form complex ionschromium can form chormate(VII) anddichromate (Vil) compounds which arerespectively orange and yellow incolour2.In order to form a complex ionthe central metal ion or atom shoul93.the dichromate compound is made byaciditying solutions of the chromatecompound.3.1.h ve low laying d and s-orbitals.2. the ligand should have at least a donorthe chromate compound is tetrahedralin shape with delocalised bonds.atom3. the central metal ion should be smaliand highly charged.86. Which of the ligand(s) below islara strongfield splitting ligand(s)?1. lodo2. hydroxo3. carbonyl94. Carbon in cast ironlowers its melting2.1.increases Its hardness and decreasesits ductility3. decreases its hardness and increasesits ductility87Tetraammine dicyano vanadium(11)95. The systematic name of [Co(en),CLINO s1. bis ethylenediamine dichloro cobaltinnitrate1.is a neutral complex2.can exhibit geometric isomerism3.is an octahedral complexbis ethylene diamine dichloro cobaitale(i) nitrate3. dichlorobisethylene diamine coball (i)nitrate2.88. Which of the following ligands can serve inlinkage isomerism1. C N]96. Optical isomerism in complexes1. have mirror image isomers that arenonsuperimposible2. have isomers that are physicallyidentical in all ways.3. have isomers that differ in the way theyrotate the plane of polarised light.2.3.89. Complex ions formed by d-block elementsmay1.cationic2. neutral3. anionic90. Across the first series of d-block elements1.first ionisation energy gradualdecreases with decrease in atomicnumber of elements.2. electrons are filling theh 4s subshell aswell.3. atomic radius generally decreases aseifective nuclear charge increases.

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87. Tetraammine dicyano vanadium(1) 1. is a neutral complex 2. can exhibil geometric isomerism 3 is an octahedral complex 95. 88. Which of the following ligands can serve in linkage isomerism 1. C N:] 96. C 2. S C-N: 3. :0-N-O 89. Complex ions formed by d-block elements may be 1. cationic 2. neutral 3. anionic

87. Tetraammine dicyano vanadium(1) 1. is a neutral complex 2. can exhibil geometric isomerism 3 is an octahedral complex 95. 88. Which of the following ligands can serve in linkage isomerism 1. C N:] 96. C 2. S C-N: 3. :0-N-O 89. Complex ions formed by d-block elements may be 1. cationic 2. neutral 3. anionic

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.30QAP

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