The reaction of 1,3-butadiene with HCI produces two addition products. (See below) H-CI CH CH CH-CH3 CH, CH=CH-CH3 + CHCH-CH=CH2 I II The relative amounts of the products that form is strongly temperature dependent. Here are the results: At 0°C, the following product composition is observed: product I (71%), product II (29%). At 42°C, the following product composition is observed: product I (15%), product II (85%). ANSWER THE FOLLOWING QUESTION: Why does the addition product I predominate at the lower temperature (0°C)? Select one: Product I predominates at lower temperature because it has more t а. electron delocalization than product II. O b. At lower temperature, the reaction is equilibrium controlled: product II is more stable than product I, so product Il predominates. Product I is less sterically hindered, so it predominates. С. d. At lower temperature, the reaction is kinetically controlled: product I forms faster, so product I predominates.

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The reaction of 1,3-butadiene with HCI produces two addition products. (See
below)
H-CI
CH CH CH-CH3
CH, CH=CH-CH3
+
CHCH-CH=CH2
I
II
The relative amounts of the products that form is strongly temperature
dependent. Here are the results:
At 0°C, the following product composition is observed: product I (71%),
product II (29%).
At 42°C, the following product composition is observed: product I (15%),
product II (85%).
ANSWER THE FOLLOWING QUESTION: Why does the addition product I
predominate at the lower temperature (0°C)?
Select one:
Product I predominates at lower temperature because it has more t
а.
electron delocalization than product II.
O b. At lower temperature, the reaction is equilibrium controlled: product II
is more stable than product I, so product Il predominates.
Product I is less sterically hindered, so it predominates.
С.
d. At lower temperature, the reaction is kinetically controlled: product I
forms faster, so product I predominates.
Transcribed Image Text:The reaction of 1,3-butadiene with HCI produces two addition products. (See below) H-CI CH CH CH-CH3 CH, CH=CH-CH3 + CHCH-CH=CH2 I II The relative amounts of the products that form is strongly temperature dependent. Here are the results: At 0°C, the following product composition is observed: product I (71%), product II (29%). At 42°C, the following product composition is observed: product I (15%), product II (85%). ANSWER THE FOLLOWING QUESTION: Why does the addition product I predominate at the lower temperature (0°C)? Select one: Product I predominates at lower temperature because it has more t а. electron delocalization than product II. O b. At lower temperature, the reaction is equilibrium controlled: product II is more stable than product I, so product Il predominates. Product I is less sterically hindered, so it predominates. С. d. At lower temperature, the reaction is kinetically controlled: product I forms faster, so product I predominates.
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