In which of the following reactions ether does not form ?
C2H5ONa + C2H5I
C2H5ONa + (CH3)3CBr
C2H5I + dry Ag2O
C2H5OH + H2SO4 (140o C)
Among the following sweetner which one has the lowest sweetness value ?
Alitame
Aspartame
Saccharine
Sucralose
In the Rosenmund's reaction
RCOCl + H2 RCHO + HCl
here BaSO4
promotes catalytic activity of Pd
removes the HCl formed in the reaction
deactivates Pd
activates Pd
Reaction of ester with Grignard reagent give rise to :
primary alcohol
secondary alcohol
tertiary alcohol
ketone
The formula of nylon is :
-[OC(CH2)6-CONH-(CH2)4-NH]n-
-[OC(CH2)4-CONH-(CH2)6-NH]n-
-[OC(CH2)3-CONH-(CH2)6-NH]n-
[OC-(CH2)2-CONH-(CH2)6-NH]n-
Two molecules of acetone in presence of dil. NaOH give the product :
4 - methyl - 2 - pentanone
4 - hydroxy - 2 - pentanal
3 - hydroxy isopropyl propanone
4 - hydroxy - 4 - methyl - 2 - pentanone
R-OH + SOCl2 R-Cl + SO2 + HCl
Pyridine in the above reaction :
catalyse the reaction
used to dissolve alkyl chloride
used to remove excess of SOCl2
None of the above
A.
catalyse the reaction
Pyridine in the above reaction catalyses the reaction ie , it helps to increase the rate of the reaction .
Which of the following has least boiling point ?
Ethyl ether
n - propyl chloride
n - butyraldehyde
n - butyl alcohol