Shapes of Molecules Questions 2 3. (0) Apply the VSEPR theory to deduce the shape of NO,, ICI, and SF, For each species, draw the Lewis (electron dot) structure, name the shape, and state the value of the bond angle(s) 19 (ii) Discuss the bond angle(s) in SF, (v) Using Table 7 of the Data Booklet, predict and explain which of the bonds O-HO-N or N-H would be most polar. The Lewis structure of XeF, contains two bonding pairs of electrons and three non-bonding pairs of electrons (lone pairs) around the central xenon atom. What is the shape of XeF molecule? A. Bent B Trigonal hinyramidal (1) (2) B C C (Total mark) D есь 24. How do the bond angles in CH, NH, and HO compare? CH NH 11,0 B CH < NH, A Но C NH x CH A D HO x NH < CH (Total I mark) 32. 0 Outline the principles of the valence shell electron pair repulsion (VSEPR) theory. 8 (ii) Use the VSEPR theory to deduce the shape of HO and CH, For each species, draw the Lewis structure, name the shape, and state the value of the bond angle(s) (ii) Predict and explain whether each species is polar (iv) Using Table 7 of the Data Booklet, predict and explain which of the bonds O-H, O-N or N-H would be most polar JB Questionbank Chemistry (6) (2) (2) (Total 13 mark)