Question

Q45. The decreasing order of ease of dehydration in the following compounds is
ОН
ОН
H
ОН
Н
ОН
(1)
(II)
"(III)
(IV)
Options:

Answer 1

Answer:

Phenol (I) is stable aromatic compound. So it is most stable. The diene (IV) undergoes quick dehydration because it will form stable phenol. The alkene (III) undergoes dehydration less readily because it gives a more stable diene. Alcohol (II) undergoes much lesser dehydration to form alkene. So order is : III>II>I.