Which of the following ether is formed from alcohol and diazomethane?
1-ethoxypropane
ethoxyethane
1-methoxypropane
2-ethoxypropane
3-methylpentan-3-ol will be prepared from
ethyl formate and methyl magnesium bromide
ethyl ethanoate and ethyl magnesium bromide
ethyl propanoate and methyl magnesium bromide
ethyl formate and ethyl magnesium bromide
Which of the following compound forms white precipitate with bromine water?
Nitrobenzene
Phenol
Benzene
All of the above
Alkaline hydrolysis of which among the following compounds leads to the formation of a racemate?
1-bromo-1-phenylethane
1-chloro-3-methylbutane
Bromoethane
1-chloropropane
Reaction of which among the following ethers with HI in cold leads to the formation of methyl alcohol?
Ethyl methyl ether
Methyl propyl ether
lsopropyl methyl ether
tert-butyl methyl ether
( +2) 2-methylbutan-1-ol (-) 2-methylbutan -1- ol have different values for which property?
Boiling point
Relative density
Refractive index
Specific rotation
Phenol is a highly corrosive substance, but it 0.2 percent solution is used as
Antibiotic
Antiseptic
Disinfectant
Antihistamine
375 mg of an alcohol reacts with required amount of methyl magnesium bromide and releases 140 mL of methane gas at STP. The alcohol is
ethanol
n-butanol
methanol
n-propanol
D.
n-propanol
The required reaction is
Moles of CH4(n) at STP = = 0.00625 moles
Here, -CH3 of CH3MgBr combines with H-atom of R-OH to give CH4.
n(CH4) = n(R-OH)
Also, n = CnH2n+1.OH
Thus, 12n + 2n + 1 + 17 = 60 ( OH = 16 + 1 = 17)
14n = 60 - 18 = 42
n = 3
Hence, alcohol is n-propanol (C3H7OH).