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研究所、轉學考(插大)-有機無機
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110年 - 110 國立臺灣大學_碩士班招生考試_化學研究所化學組:有機無機#102186
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25. Explain the following terms (Total 10 pts; 2 pts each): (a) turnover frequency, (b) turnover number, (c) selectivity, (d) catalyst, and (e) catalytic cycle
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第二大題:問答題(共55分) Part II: Questions and Answers (Please provide an adequate answer to each of the following questions; Total 55 points) 21. Provide a mechanism for the following transformation. Please show all arrow pushing. (6 pts)
#429854
22. Provide a synthesis that will selectively convert S to T. Show all of the key intermediates and furnish all of the important reagents. Hint: This is not a one-step process. (8 pts)
#429855
23. Consider both regioselectivity and stereosclectivity to predict the products for the eliminations below, and draw complete mechanisms. (6 pts)
#429856
24. What are the advantages and disadvantages of the following bonding theory? (Please use specific examples to support your answers) (10 pts) (a) VSEPR Theory, (b) Valence Bond Theory, (c) Molecular Orbital Theory
#429857
(a) What would you call this reaction? (1 pt)
#429859
(b) What is the d-orbital splitting diagram of complex a and complex b. (Please label each orbital) (2 pts)
#429860
(c) Provide a detailed description of the electronic structures of complex b? (You should include oxidation state, number of unpaired electrons and spin state, ctc.) (2 pts)
#429861
(d) What characterization technique(s) would you use to prove your assignment about the electronic structure of complex b in question (c). (Please include a detailed explanation in your answer) (10 pts)
#429862
1. Depreciation of $3,200 for 2019 on delivery vehicles was not recorded.
#429863
2. The physical inventory count on December 31, 2018, improperly excluded merchandise costing $19,000 that had been temporarily stored in a public warehouse. Zarle uses a periodic inventory system.
#429864
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