Question

(I) 1, 2-dihydroxy benzene (II) 1, 3-dihydroxy benzene (III) 1, 4-dihydroxy benzene (IV) Hydroxy benzene The increasing order of boiling points of above mentioned alcohols is

• A. I < II< III< IV
• B. I < II< IV < 1 II
• C. IV < I< II< III
• D. IV < II < I < III

Answer 1

Answer: (C)

IV < I< II< III

Answer 2

All dihydroxy benzene will have, higher boiling points than monohydroxy benzene. Also, among dihydroxy benzenes, $1, 2$,-di-hydroxy benzene has lowest boiling poirt due to intramolecular H-bonding.