12 what is the final product of a reaction of the squre planar complex ptbr42 with 2 molar equiv

First, we have the square-planar complex [PtBr4]2-. When it reacts with 2 molar equivalents of c

Question

12. What is the final product of a reaction of the square-planar complex [PtBr4]2- with 2 molar equivalents of chloride Cl- (Cl- lies below Br- in the trans series)? A. Trans – [PtBr2Cl2]2- B. [PtCl4]2- C. cis - [PtBr2Cl2]2- D. mixture of cis - [PtBr2Cl2]2- and Trans – [PtBr2Cl2]2- 13. If the starting complex is cis and the resulting complex is exclusively cis (substitution in octahedral complexes – SN1), the intermediate has A. square bipyramidal geometry B. square planar geometry C. trigonal bipyramidal D. square pyramidal geometry 14. The expected mechanism for substitution reactions of tetrahedral complexes is A. interchange dissociative mechanism B. interchange associative mechanism C. dissociative mechanism SN1 D. associative mechanism SN2 15. In substitution reaction mechanism SN1, when the resulting complexes constitute a racemic mixture, the intermediate complex should have A. trigonal bipyramidal B. square bipyramidal C. square pyramidal D. tetrahedral geometry 16. The SN1-CB mechanism requires that the reacting complex should have A. positive charge B. at least two stable oxidation states for the central metal C. at least one protonic hydrogen on the ligand D. two central metals 17. Which of the following approaches is not helpful in causing a dissociative activated mechanism in square planar complexes? A. good nucleophile incoming ligand B. poor nucleophile incoming ligand C. sterically hindered substrates D. strong trans-influence ligand

12. What is the final product of a reaction of the square-planar complex [PtBr4]2- with 2 molar equivalents of chloride Cl- (Cl- lies below Br- in the trans series)?
A. Trans – [PtBr2Cl2]2-
B. [PtCl4]2-
C. cis - [PtBr2Cl2]2-
D. mixture of cis - [PtBr2Cl2]2- and Trans – [PtBr2Cl2]2-

13. If the starting complex is cis and the resulting complex is exclusively cis (substitution in octahedral complexes – SN1), the intermediate has
A. square bipyramidal geometry
B. square planar geometry
C. trigonal bipyramidal
D. square pyramidal geometry

14. The expected mechanism for substitution reactions of tetrahedral complexes is
A. interchange dissociative mechanism
B. interchange associative mechanism
C. dissociative mechanism SN1
D. associative mechanism SN2

15. In substitution reaction mechanism SN1, when the resulting complexes constitute a racemic mixture, the intermediate complex should have
A. trigonal bipyramidal
B. square bipyramidal
C. square pyramidal
D. tetrahedral geometry

16. The SN1-CB mechanism requires that the reacting complex should have
A. positive charge
B. at least two stable oxidation states for the central metal
C. at least one protonic hydrogen on the ligand
D. two central metals

17. Which of the following approaches is not helpful in causing a dissociative activated mechanism in square planar complexes?
A. good nucleophile incoming ligand
B. poor nucleophile incoming ligand
C. sterically hindered substrates
D. strong trans-influence ligand

Added by Mary R.

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