(a) 1, 4 (b) 1, 2, 5 (c) 2, 3, 5 (d) 2, 3 (e) 4, 5 15. Using valence bond theory, explain the following in relation to the complexes gives below: (i) Type of hybridisation. The coordination number and the oxidation state of the element E in the complex. Because of the involvement of (n - l)d, i. e. 3d-orbital in hybridisation, it is an inner orbital complex. Which of the following options are correct for [Fe(CN)6]3– complex? Coordination complexes have been known since the beginning of modern chemistry. (A) [Fe(CN)6]4- (B) [Ni(NH3)6]2+ (C) [Co(NH3)6]3+ (D) [Mn(CN)6]4-. Which one of the following complexes is an outer orbital complex? The splitting of the degenerate levels due to the presence of ligands is called the crystal-field splitting while the energy difference between the two levels (eg and t2g) is called the crystal-field splitting energy. Answer. Solution: The electronic configuration will be t4 2g e2 g. It has 4 unpaired electron and paramagnetic. The formation of complex depend on the crystal field splitting, ∆o and pairing energy (P). How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a Ca^2+ ion? (5) … Fig. (a) [MnCl 6] 3-(b ) [FeF 6] 3-(c) [CoF 6] 3-(d) [Ni(NH 3) 6] 2+ Solution: Question 17. The complexes primarily involve transition metals and the orbitals that form are called hybrid orbitals such as d2sp3, or sp3d2 depending on whether the complex is an inner or outer orbital type. | EduRev NEET Question is disucussed on EduRev Study Group by 101 NEET Students. Which of the following outer orbital octahedral complexes have the same number of unpaired electrons? https://www.zigya.com/share/Q0hFTkpFMTIxNTk2Mjg=. hybridization and are inner orbital complexes. (5) The coordination number is 6. Which one of the following complexes is an outer orbital complex? Check Which of the following is/are inner orbital complex(es) as well as dimagentic in nature. Among all the given statements, statement III is false.In both the given complexes, the central metal is in the same oxidation state, i.e. 17. (5) … III. Explain with two examples each of the following: coordination entity, ligand, coordination number, coordination polyhedron, homoleptic and heteroleptic. Rh +, Ir +, Pd 2+, Pt 2 +, and Au 3+ complexes with a d 8 configuration tend to form square planar structures because eight electrons occupy the lower orbitals leaving the highest d x 2-y 2 orbital empty. (iii) Magnetic behaviour. The compound [Ni(NH . (4) The complex is diamagnetic. Therefore, it is an inner orbital complex. TCYonline Question & Answers: get answer of Which one of the following complexes is an outer orbital complex? Thus, it cannot undergo d 2sp3 hybridization. II. Early well-known coordination complexes include dyes such as Prussian blue.Their properties were first well understood in the late 1800s, following the 1869 work of Christian Wilhelm Blomstrand.Blomstrand developed what has come to be known as the complex ion chain theory. The number of unpaired electrons present in complex ion is : View solution. The compound [Ni(NH . i)If ∆ o < P, the fourth electron enters one of the eg orbitals giving theconfiguration t 2g 3. ion with tetrahedral geometry is paramagnetic. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Which one of the following complexes is an outer orbital complex? So, Since, 2 orbitals are not vacant in Ni 2+, so it will form an outer orbital complex with sp 3 d 2 hybridization and 2 unpaired electrons giving it paramagnetic nature. 2. hybridization and is outer orbital complex. ii) If ∆o > P, it becomes more energetically favourable for the fourth electron to occupy a t2g orbital with configuration t2g4 eg0. The coordination number of central metal in these complexes is 6 having d 2 sp 3 hybridisation. [Co(NH3)5(–NO2)]2+ and [Co(NH3)5(–ONO)]2+. Which of the following outer orbital octahedral complexes have the same number of unpaired electrons? If NH3 causes the pairing, then only one 3d orbital is empty. Download the PDF Question Papers Free for off line practice and view the Solutions online. The complexes formed, if have inner d orbitals are called low spin complexes or inner orbital complexes and if having outer d orbitals are called high spin or outer orbital complex. [Atomic nos. will cause pairing of electrons. For example : NO2– group can do coordination to metal ion through or atom forming nitro complex or through oxygen atom forming nitrito complex. Hence, it forms an outer orbital complex. This results into formation of linkage isomers. Jan 08,2021 - Which one of the following complexes is an outer orbital complex ? (3) The complex is d2sp3 hybridized. 21. 2021 Zigya Technology Labs Pvt. Students can solve NCERT Class 12 Chemistry Coordination Compounds MCQs Pdf with Answers to know their preparation level. Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? Using valence bond theory, explain the following in relation to the complexes given below: [Mn(CN) 6 ] 3–, [Co(NH 3) 6] 3+, [Cr(H 2 O) 6] 3+, [FeCl 6] 4– (i) Type of hybridisation. Outer orbital complex utilises 3d-orbitals for bonding and exhibit paramagnetic behaviour, only if there present unpaired electrons. Check Although the ability to form complexes is common to all metal ions, the most numerous and interesting complexes are formed by the transition elements. : Mn = 25; Fe = 26; Co = 27, Ni = 28)a)[Co(NH3)6]3+b)[Mn(CN)6]4–c)[Fe(CN)6]4–d)[Ni(NH3)6]2+Correct answer is option 'D'. Coordination entity : A coordination entity constitutes a central atom/ion, usually of a metal, to which are attached a fixed number of other atoms or groups each of which is called a ligand. Ltd. Download books and chapters from book store. Which one of the following complexes is an outer orbital complex
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Which one of the following is an outer orbital complex and exhibits paramagnetic … (A) [Zn(NH3)6 ]^2+ (B) [Ni(NH3)6 ]^2+ (C) asked Oct 12, 2019 in Co-ordinations compound by KumarManish (57.6k points) coordination compounds; jee; jee mains; 0 votes. The ligands may be anions like CN–, C–, C2O42– ion neutral molecules like H2O, NH3, CO. Irrespective of their nature all types of ligands have lone pair of electrons.Coordination number: Total number of ligand atoms which are bound to a given metal ion is called its coordination number. various types of isomerism possible for coordination compounds, giving an example of each. Therefore, it undergoes sp3d 2 hybridization. [Atomic nos. [CoF6]3- due to weak ligand (F) does not go for pairing and show outer octahedral orbital complex (sp3d2). Geometrical isomerism: In tetra coordinated square planar complexes, cis- (when same groups are on same side and trans- (when same groups are on opposite sides) isomers are possible depending on position of different ligands, e.g., cis-platin and trans-diamine dichloro platinum(II). Figure \(\PageIndex{7}\): Change of the orbital energy from octahedral to square planar complexes. hybridization and are inner orbital complexes. 30. (4) The complex is diamagnetic. The IUPAC name for the complex [Co(NO2)(NH3)5]Cl2 is . The most common coordination polyhedra are octahedral, square planar and tetrahedral. Question 16. View solution. (2) The complex is an outer orbital complex. © What is crystal field splitting energy? Generally weaker field ligands form outer orbital complex. Ligands for which ∆o < P are known as weak field ligands and form high spin complexes. i)If ∆o < P, the fourth electron enters one of the eg orbitals giving theconfiguration t2g3. 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