Catalytic dehydrogenation of a primary alcohol gives a :
secondary alcohol
aldehyde
ketone
ester
Waxes are esters of :
glycerol
long chain alcohols
glycerol and fatty acid
long chain alcohols and long chain fatty acids
Which of the following organic compounds answers to both iodoform test and Fehling's test ?
Ethanol
Methanal
Ethanal
Propanone
The IUPAC name of the following compound is
propionic anhydride
dipropanoic anhydride
ethoxy propanoic acid
propanoic anhydride
Acetaldehyde cannot show :
iodoform test
Lucas test
Benedict's test
Tollen's test
B.
Lucas test
Acetaldehyde cannot show Lucas test because Lucas test is given by alcohols only .It is used in the distinction among primary , secondary and tertiary alcohols .
Conc. HCl + anhydrous ZnCl2 is called Lucas reagent .