22660.From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2, is
2–Methylpropan–2–ol
2–Butanol
1–Butanol
2–Methylpropanol
22661.During dehydration of alcohols to alkenes by heating with conc. H2SO4 the initiation step is
formation of carbocation
elimination of water
formation of an ester
protonation of alcohol molecule
22662.Which of the following is incorrect?
FeCl3 is used in detection of phenol
Fehling's solution is used in detection ofglucose
Tollen's reagent is used in detection ofunsaturation
NaHSO3 is used in detection ofcarbonyl compound
22663.Which among the following phenolic compounds is most acidic in nature?
p–aminophenol
phenol
m–nitrophenol
p–nitrophenol
22664.Reaction of which among the following ethers with HI in cold leads to formation of methyl alcohol ?
ethyl methyl ether
methyl propyl ether
isopropyl methyl ether
tert–butyl methyl ether
22665.Phenol is heated with a solution of mixture of KBr and KBrO3. The major product obtained in the above reaction is:
2, 4, 6–Tribromophenol
2–Bromophenol
3–Bromophenol
4–Bromophenol
22666.The reaction
is called
is called
Williamson synthesis
Williamson continuous etherification process
Etard reaction
Gatterman – Koch reaction
22667.The reaction
can be classified as
can be classified as
Dehydration reaction
Williamson alcohol synthesis reaction
Williamson ether synthesis reaction
Alcohol formation reaction
22668.The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is:
Salicylaldehyde
Salicylic acid
Phthalic acid
Benzoic acid
22669.Among the alkenes which one produces tertiary butyl alcohol on acid hydration
(CH3)2C = CH2
CH3 – CH = CH – CH3
CH3 – CH2 – CH = CH2
CH3 – CH = CH2