CBSE
Multiple Choice QuestionsWith CH3MgBr , diethyl ether gives :
coordination complex
n - butane
a mixture of ethyl bromide and methyl bromide
propane
Denatured alcohol is :
ethanol + methanol
rectified spirit + methanol + naphtha
undistilled ethanol
rectified spirit
Reaction of ester with Grignard reagent give rise to :
primary alcohol
secondary alcohol
tertiary alcohol
ketone
Assertion : Acetamide on reaction with KOH and bromine gives acetic acid.
Reason : Bromine catalyses hydrolysis of acetamide.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
In which of the following reactions ether does not form ?
C2H5ONa + C2H5I
C2H5ONa + (CH3)3CBr
C2H5I + dry Ag2O
C2H5OH + H2SO4 (140o C)
Ethyl ester . The product p will be
Which of the following has least boiling point ?
Ethyl ether
n - propyl chloride
n - butyraldehyde
n - butyl alcohol
A compound containing two -OH groups attached with one carbon atom is unstable but which one of the following is stable?
CH3CH(OH)2
CH3-C(OH)3
Cl3CCH(OH)2
None of these
The angle R-O-R is :
109° 28°
95°
110°
105°
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
