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Which of the following is true statem ent regarding reaction of c/s and trans 2-hexene with CH3OH/H+ ?
- a)Both react at same rate
- b)C/s isomer reacts faster than trans isomer
- c)Both cis and trans isomers give mixture of positional isomers as the major product
- d)Both (a) and (c)
Correct answer is option 'D'. Can you explain this answer?
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Which of the following is true statem ent regarding reaction of c/s an...
Both cis and trans 2-hexene form s the same carbocation, hence react at same rate.
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Which of the following is true statem ent regarding reaction of c/s an...
The correct statement regarding the reaction of cis and trans 2-hexene with CH3OH/H+ is:
Option D: Both react at the same rate and both cis and trans isomers give a mixture of positional isomers as the major product.
Explanation:
The reaction of cis and trans 2-hexene with CH3OH/H+ is an example of an acid-catalyzed hydration reaction. In this reaction, the alkene undergoes addition of a water molecule across the double bond to form an alcohol. The reaction mechanism involves the protonation of the alkene by the acid catalyst, followed by attack of the nucleophilic water molecule on the carbocation intermediate.
Now, let's look at each option and eliminate the incorrect ones:
Option A: Both react at the same rate - This is true. Both cis and trans isomers have the same chemical formula and the same functional group, so they undergo the same reaction mechanism and react at the same rate.
Option B: Cis isomer reacts faster than trans isomer - This is false. The reactivity of an alkene depends on the stability of the carbocation intermediate formed during the reaction. In this case, both cis and trans isomers form the same carbocation intermediate, so they have the same reactivity.
Option C: Both cis and trans isomers give a mixture of positional isomers as the major product - This is true. The addition of a water molecule across the double bond can occur in two different ways, resulting in two different positional isomers. Since both cis and trans isomers can form the same carbocation intermediate, they can both give a mixture of positional isomers as the major product.
Therefore, the correct statement is option D: Both react at the same rate and both cis and trans isomers give a mixture of positional isomers as the major product.
Option D: Both react at the same rate and both cis and trans isomers give a mixture of positional isomers as the major product.
Explanation:
The reaction of cis and trans 2-hexene with CH3OH/H+ is an example of an acid-catalyzed hydration reaction. In this reaction, the alkene undergoes addition of a water molecule across the double bond to form an alcohol. The reaction mechanism involves the protonation of the alkene by the acid catalyst, followed by attack of the nucleophilic water molecule on the carbocation intermediate.
Now, let's look at each option and eliminate the incorrect ones:
Option A: Both react at the same rate - This is true. Both cis and trans isomers have the same chemical formula and the same functional group, so they undergo the same reaction mechanism and react at the same rate.
Option B: Cis isomer reacts faster than trans isomer - This is false. The reactivity of an alkene depends on the stability of the carbocation intermediate formed during the reaction. In this case, both cis and trans isomers form the same carbocation intermediate, so they have the same reactivity.
Option C: Both cis and trans isomers give a mixture of positional isomers as the major product - This is true. The addition of a water molecule across the double bond can occur in two different ways, resulting in two different positional isomers. Since both cis and trans isomers can form the same carbocation intermediate, they can both give a mixture of positional isomers as the major product.
Therefore, the correct statement is option D: Both react at the same rate and both cis and trans isomers give a mixture of positional isomers as the major product.
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Which of the following is true statem ent regarding reaction of c/s and trans 2-hexene with CH3OH/H+ ?a)Both react at same rateb)C/s isomer reacts faster than trans isomerc)Both cis and trans isomers give mixture of positional isomers as the major productd)Both (a) and (c)Correct answer is option 'D'. Can you explain this answer?
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