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Q.

Which of the following reaction is not feasible?

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a

${CH}_{3} - {CH}_{2} - OH \to_{443 K}^{95 % H_{2} {SO}_{4}} {CH}_{2} = {CH}_{2}$

b

$H_{3} C - {CH}_{2} - {CH}_{2} - {CH}_{2} - OH \to_{300 K}^{^{75 % H_{2} {SO}_{4}}} {CH}_{3} - {CH}_{2} - CH = {CH}_{2}$

c

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d

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answer is B.

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Detailed Solution

When alcohol is treated with sulphuric acid at 443 K, then dehydration occurs and the product formed is an alkene, whereas if the temperature is 413 K or less, then the respective ether formation takes place. This means that the reaction present in option B is not feasible until the temperature is raised to 443 K.

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