To distinguish between salicylic acid and phenol one can use :
NaHCO3 solution
5% NaOH solution
neutral FeCl3
bromine water
Acid catalyzed hydration of alkenes except ethene leads to the formation of
mixture of secondary and tertiary alcohols
mixture of primary and secondary alcohols
secondary or tertiary alcohol
primary alcohol
Among the following compounds which can be dehydrated very easily ?
CH3CH2CH2CH2CH2OH
CH3CH2CH2CH(OH)CH3
CH3CH2CHCH3
CH3CH2CH(CH3)CH2CH2OH
C.
CH3CH2CHCH3
Dehydration of alcohol is in order
1° < 2°< 3°
Therefore, option c is dehydrated very easily.
Picric acid is :
2, 4, 6-tribromophenol
sym-trinitrophenol
trinitrophenol
2, 4, 6-trinitrotoluene
The cleavage of an aryl-alkyl ether with cold HI gives:
alkyl iodide and water
aryl iodide and water
alkyl iodide, aryl iodide and water
phenol and alkyl iodide
In Lucas test an alcohol reacts immediately and gives insoluble chloride. The alcohol is
CH3OH
CH3CH2OH
(CH3)2CHOH
(CH3)3COH
Glycerol is more viscous than ethanol due to
high molecular weight
high boiling point
many hydrogen bonds per molecule
Fajan's rule