Alcohol

Question 1

Reaction with electropositive metals

Answer 1

R : Na/ K

P: alkoxides, H2

Question 2

Esterification with COOH

Answer 2

R : RCOOH
C : CONC H2SO4, reflux
P : ester, H2O

Question 3

Esterification with COCl

Answer 3

R : RCOCl

P : ester, HCl

Question 4

Oxidation of alcohol

Answer 4

R: KMnO4
C : acidified, heat
P: 1° OH -> aldehyde -> COOH
     2 °OH - > ketone
     3° OH - > NO REACTION

Question 5

Reaction with PCl5, PCl3 and SOCl2

Answer 5

R: PCl3 / PCl5/ SOCl2
P: Haloalkane + H3PO3
Haloalkane + POCl3 + HCl
Haloalkane + SO2 + HCl

Question 6

Reaction with HX

Hydrohalogenation

Answer 6

R: conc HCl

P : haloalkane + water

Question 7

Lucas test

Answer 7

R: conc HCl + ZnCl2
P : 1°- no cloudiness ( react very slowly)
2°- react in 1 to 5 mins( turns cloudy)
3° - immediately turn cloudiness

Question 8

Dehyradration of alcohol

Answer 8

R : excess conc H2SO4
C : 180°C
P: alkene
Obey Saytzeff’s rule

Question 9

Formation of ether

Answer 9

R : conc H2SO4, excess Alcohol
C: 140°C
P: ether

Question 10

Formation of iodoform

Answer 10

R: I2, NaOH (aq)
C : reflux
P: RCOO- + CHI3

Question 11

Phenol with Na

Answer 11

R: Na

P : sodium phenoxide +H2

Question 12

Phenol with NaOH

Answer 12

R: NaOH
P: ONa + H2O

Question 13

Esterificstion with acyl chloride

Answer 13

R: RCOCl
P: ester

Question 14

Phenol with Halogen

Answer 14

R: liquid bromine( Br2)
C: room temp
P: 2,4,6 tribromophenol + HBr

Question 15

Nitration of phenol with dilute HNO3

Answer 15

R: dilute HNO3
C: room temp
P: 2 and 4

Question 16

Nitration of phenol with conc HNO3

Answer 16

R: Conc HNO3
Conc H2SO4
C : room temp
P : 2,4,6 NO2

Question 17

Reduction of Phenol

Answer 17

R : H2
C : NI, 180°C
P: cyclohexanol

Question 18

Phenol with FeCl3

Answer 18

R: FeCl3
C : room temp
P: complex