Buy Catalytic Hydrogenatio Discussion Assignment

Buy Catalytic Hydrogenatio Discussion Assignment
Buy Catalytic Hydrogenatio Discussion Assignment
1. Which of the following compounds does not dissolve in
concentrated H2SO4 on warming?
(a) n-Hexane
(b) Diethyl ether
(c) 1-Butene
(d) Aniline
2. 2,3-Dimethyl-2-butene undergoes catalytic
hydrogenation to give
(a) 2,3-Dimethylbutane
(b) 2-Methylpentane
(c) 2,2-Dimethylbutane
(d) 3-Methylpentane
3. Why is the halogenation of alkanes considered a chain
(a) it occurs quickly.
(b) it occurs without the generation of intermediates.
(c) each step generates the reactive intermediate that
causes the next step to occur.
(d) the reaction allows long chains of halogenated alkanes
to be formed.
4. The chlorination of methane to give CCl4 is an example
(a) an electrophilic addition
(b) a free-radical substitution
(c) a nucleophilic addition
(d) an electrophilic substitution
5. In the chlorination of alkanes, the first step in which
chlorine free radicals are produced is called :
(a) initiation
(b) activation
(c) propagation
(d) deactivation
6. Chlorine free radicals react with methane by :
(a) donating their free-radical electron to methane to form
(b) abstracting a hydrogen atom from methane, and
producing HCl and a methyl radical.
(c) forming a carbanion intermediate that rapidly dissociates
to produce chloromethane.
(d) forming a carbonium ion intermediate that rapidly
dissociates to form chloromethane.
7. Which halogen does not appreciably react with
methane in a free-radical substitution reaction?
(a) chlorine
(b) bromine
(c) iodine
(d) fluorine
8. What product is formed in the free-radical bromination
of methane?
(a) bromomethane
(b) dibromomethane
(c) tribromomethane
(d) all of these
9. Chlorination of an alkane as compared to bromination
(a) at a slower rate
(b) at a faster rate
(c) with equal rates
(d) with equal or different rate depending upon the source
of alkane.
10. How many monochlorinated isomers would result from
the reaction of chlorine with n-butane in the presence of UV
(a) 2
(b) 4
(c) 6
(d) 8
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