PAST YEAR TUTORIAL 2.docx - NAME MATRIC TUTORIAL CHM 361 CHAPTER 2 QUESTION 1 a Sketch the sigma and pi bond from p orbital(3 marks b Determine the type

PAST YEAR TUTORIAL 2.docx - NAME MATRIC TUTORIAL CHM 361...

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QUESTION 1 a) Sketch the sigma and pi bond from p orbital. (3 marks) b) Determine the type of hybridization and molecular geometry for central atom in ICl 2 . (2 marks) c) State the number of shared electron in SF 4 . (1 marks) d) Produce the geometry for each central atom in CH 3 COCH 3 . (3 marks) JUNE 2018 QUESTION 2 a) In the context of Valance Bond Theory, differentiate the overlapping of orbitals for the formation of sigma ( σ ) and pi ( ) bonds. (3 marks) b) 3 penten-2-one (CH 3 COCHCHCH 3 ) is often used as a flavoring agent. i) Sketch the suitable Lewis structure for 3 Penten-2-one. (2 marks) ii) State the number of sigma ( σ ) and pi ( ) bonds in 3-penten-2-one. (2 marks) iii) Identify the orbital hybridization at each carbon (C) atom. (2 marks) JAN 2018 QUESTION 3 a) Distinguish between shared and unshared pairs of electrons. (3 marks) b) Predict the shapes of PCl 6 - , ClF 3 and CH 4 by using VSEPR theory. (3 marks) c) Construct the orbitals overlap in NH 3 molecule.

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