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.#1 ple Choice Questions, circle the correct options. 10 marks The structure of methane (CH4) is tetrahedral. Tetrahedral angle is 109.5" because 1x 10-10 marks a) it minimizes the repulsion between valence electrons of carbon (C) b) it maximizes the attraction between carbon (C) and hydrogen (H) nuclei (plural of nucleus) c) it minimizes the attraction between valence electrons of carbon (C) and hydrogen (H) d) all of these 2. In acetic acid H₂C-C-OF a) sp² orbital of carbon and p orbital of oxygen c) sp³ orbital of carbon and p orbital of oxygen H₂C-C-OH the double bond (n-pi bond) between carbon and oxygen is formed between b) p orbital of carbon and p orbital of oxygen d) none of these 3. The formula of formal charge is a) Number of valence electrons - number of lone pairs - ½ number of bond pair electrons b) Number of valence electrons - number of lone pairs - ½ number of bond pairs c) Number of valence electrons - number of lone pair electrons - ½ number of bond pair electrons d) None of these 4. The formal charge on each atom in correct Lewis dot structure of hydrogen cyanide (HCN) is b) H (+1), C (0), N (-1) a) H (0), C (0), N (0) d) H (+1), C (0), N (+1) c) H (0), C (0), N (+1) 5. The total number of resonance structures for a benzylic radical are b) 3 a) 2 Final Examination Department of Chemistry c) 4 CH₂ benzylic radical d) 5 P