a soft Do penc to blacken the one any question one or make on this booklet. Mark
ID: 1071072 • Letter: A
Question
a soft Do penc to blacken the one any question one or make on this booklet. Mark your with Cor The than that ansers refo one ans to 1. to your stion. answer the Which compound advantage to or on Arsver (i) CHC1 has bond answer Your score the sheet. Use (2) angles wit be the tatal muber of My (4) closest to 120 (3) (5) 7. correct o-c-0 HCECH Wat is the total nuber of p1 bonds in the ecule? (1) 2. the methanol (1) s on of carbon (2) 2 (4) (3) 3 (5) 5 8. (1) 1 the number of non-bonding pafrs of electrons none pars)? (2) p (4) sp? (3) sp (5) sp3 (4) 4 3. Which compound is 1 fnearr (2) 2 50 5 (3) 3 (4) 9. Select the one structure that is different the nest (2) HCaCH (3) BrCH2CH2Br (5) 4) Bra 4. A triple bond is composed of (1) 30 bonds. (2) (2) 3m bonds. (5) a, (3) lo bond and 2T bonds. (4) 20 bonds and 1 bond. (3) CH (5) bond and 1 bond. 10. select the IUPAC name for thts convound. Consider the following molecule for questions 5-8. (1) 2-hydroxy-3-phenylbutane 5. What geometry best describes the spatial (2) 1-methyl-1-phenyl-2-propanol. orientation of atoms bonded to carbon (3) 2-phenyl-3-butanol (1) tetrahedral (4) pentagonal (A) 2-phenyl-sec-butyl alcohol (2) square (5) linear (5) 3-phenyl-2-butanol (3) trigonal The bond angles around carbon Z are closest to (1) 60 (4) 120. (2) go. (5) 180 (3) 109Explanation / Answer
1.
opyion-2 H2C=O is the correct answer
1. CHCl3 here C is in SP3 hybridization bond angele is 109 º. 28'
2. H2C=O here C is in SP2 so trigonal planar is the shape bond angle is exactly 120 ºC
3. O=C=O here C is in SP hybridizationso bond angle is 180 º
4. NH3 is a pyramidal shape bond angle is 107 º
5. HCtriplebondCH
here Carbon hybridization is SP so bond angl eis 180 º
option 2 is the only molecule having 120º bond angle.
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