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Which one of the following alcohols unde...

Which one of the following alcohols undergoes dehydration most easily?

A

`CH_(3)CH_(2)CH_(2)CH_(2)OH`

B

`CH_(3)CH_(2)-underset(""CH_(3))underset("| ")"CH"-CH_(2)-CH_(2)OH`

C

`CH_(3)-CH_(2)-CH_(2)-underset(OH)underset("| ")"CH"-CH_(3)`

D

`CH_(3)-CH_(2)-overset(""CH_(3))overset("| ")underset(OH)underset("| ")"C "-CH_(2)CH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
The reactivity order for dehydration of alcohols is tertiary alcohol `gt` secondary alcohol `gt` primary alcohol. Therefore, the alcohol, `{:(" "CH_(3)),(" |"),(CH_(3)CH_(2)-C-CH_(2)CH_(3)),(" |"),(" "OH):}` is dehydrated most rapidly.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ALCOHOLS, PHENOLS AND ETHERS-PRACTICE EXERCISE (Exercise 1 (TOPICAL PROBLEMS))
  1. Which of the following is hydrated to a maximum extent?

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  2. The alcohol with highest boiling point is

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  3. Which one of the following alcohols undergoes dehydration most easily?

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  4. The most suitable reagent for the conversion of R- CH(2) - OH rarr R...

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  5. In the reaction, underset("(Vapour)")(C(2)H(5)Oh)overset(Cu)underset(3...

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  6. A fruity smell is obtined by the reaction of ethanol with

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  7. In the manufacture of ethanol from sugar, the enzymes used are

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  8. In Lucas test of alcohols, appearance of cloudiness is due to the form...

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  9. The reactant (X) used in the following reaction is methyl magnesium br...

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  10. The order for the acidic strength of 1^(@),2^(@),3^(@) alcohols, H(2)O...

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  11. Which of the following are benzylic alcohols I C(6)H(5)-CH(2)-CH(2)O...

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  12. CO+H(2)underset(573K//300atm)overset(X("catalayst"))(rarr)CH(3)OH, the...

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  13. CH(3)CH(2)OH can be converted into CH(3)CHO by........... .

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  14. An allcohol gave Lucas test in about 5 minutes. When the alcohol was t...

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  15. CH(2)OH.CH(2)OH on heating with periodic acid gives

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  16. In the reaction given below, the product C is CaC(2)overset(H(2)O)ra...

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  17. The order or reactivity of the following alcohols is

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  18. Which one of the following will most readily be dehydrated in acidic c...

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  19. Reaction of ROH with R'MgX produces

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  20. In which of the following molecules, the cleavage by HlO(4) is not obs...

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