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During dehydration of alcohols to alkene...

During dehydration of alcohols to alkenes by heating with conc. `H_2SO_4`, the initial step is

A

formation of an ester

B

protonation of alcohol molecule

C

formation of carbocation

D

elimination of water

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MODERN PUBLICATION-ALCOHOLS, PHENOLS AND ETHERS-EXERCISE

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  2. When phenol is treated with CHCl(3) and NaOH, the product formed is

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  3. During dehydration of alcohols to alkenes by heating with conc. H2SO4,...

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  4. Which of the following compounds will give a yellow precipitate with i...

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  5. Among the following compounds which can be dehydrated very easily is

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  6. The major organic product in the reaction CH3-O-CH(CH3)2 + HI rarr Pro...

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  7. In the reaction : CH3- underset (CH3) underset(|) (CH) -CH2-O-CH2-CH3+...

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  8. Consider the following reaction : Ethanol overset (PBr3) rarr X overse...

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  9. Phenol overset (Zn, dust) rarr X overset (CH3Cl) underset (Anhyd. AlCl...

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  10. Which of the following compounds is most acidic

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  11. Given are cyclohexanol (I), acetic acid (II), 2, 4,6- trinitrophenol (...

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  12. Among the following ethers, which one will produce methyl alcohol on t...

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  13. Among the following seta of reactants which one produces anisole ?

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  14. Identify Z in the sequence of reactions: CH3CH2CH=CH2 overset (HBr, H...

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  15. Complete the reaction :

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  16. Primary, secondary and tertiary alcohols can be distinguished by

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  17. Which of the following will be most readily dehydrated in acidic condi...

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  18. The correct IUPAC name of the organic compound CH3- underset (Cl) und...

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  19. Which one of the following phenols has the highest pKa value ?

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  20. Among the following the one that gives position iodoform test upon rea...

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