ORGANIC QUIZZES - TOPIC 3 Mechanisms SET C
ORGANIC Quizzes - TOPIC 3 Mecahnisms SET C.
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QUESTION 1. In which of the following molecules is there a carbon atom that is sp
2
hybridized?
(A) Propane
(B) Propene
(C) Butane
(D) 1-chloropropane
(E) Methane
QUESTION 2. Which of the following is incorrect when refering to the heterolytic fission of a covalent bond?
(A) Two electrons travel with one product and zero with the other
(B) A negative and a positive species are created
(C) The movement of electrons can be shown by employing a "curly arrow" with a complete "head"
(D) Heterolytic fission takes place during a SN1 mechanism
(E) All of the above are true
QUESTION 3. In the free radical substitution of methane with chlorine in the presence of ultra-violet light, ethane is a by-product of the reaction. What species in the mechanism is responsible for the formation of this by-product?
(A) Methyl radicals
(B) Chlorine radicals
(C) Methane
(D) Chloromethane
(E) Ethyl radicals
QUESTION 4. Which of the following gaseous halogens would you expect to be turned into radicals most easily when exposed to ultra-violet light?
(A) Iodine
(B) Bromine
(C) Chlorine
(D) Fluorine
(E) Not possible to tell
QUESTION 5. All of the following are ALWAYS true in relation to nucleophiles, EXCEPT?
(A) They have a lone pair of electrons
(B) They have a negative charge
(C) They are involved in the substitution of haloalkanes
(D) Ammonia can act as a nucleophile
(E) Hydroxide ions can act as nucleophiles
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