Q. The number of stereoisomers possible for a compound of the molecular formula
(1) 4 (2) 6 (3) 3 (4) 2
AIEEE-2009
Q. A liquid was mixed with ethanol and a drop of concentrated $\mathrm{H}_{2} \mathrm{SO}_{4}$ was added. A compound with a fruity smell was formed. The liquid was :-
(1) $\mathrm{CH}_{3} \mathrm{COCH}_{3}$
(2) $\mathrm{CH}_{3} \mathrm{COOH}$
(3) $\mathrm{CH}_{3} \mathrm{OH}$
(4) HCHO
AIEEE-2009
Q. From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous $\mathrm{ZnCl}_{2}$, is :-
(1) 1–Butanol
(2) 2–Butanol
(3) 2–Methylpropan–2–ol
(4) 2–Methylpropanol
AIEEE-2010
Q. Consider the following reaction :
$\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow$ Produce
Among the following, which one cannot be formed as a product under any conditions ?
(1) Ethyl-hydrogen sulphate
(2) Ethylene
(3) Acetylene
(3) Diethyl ethe
AIEEE-2011
Q. Iodoform can be prepared from all except :-
(1) Isobutyl alcohol
(2) Ethyl methyl ketone
(3) Isopropyl alcohol
(4) 3-Methyl–2–butanone
AIEEE-2012
Q. An unknown alcohol is treated with the “Lucas reagent’ to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism :-
(1) secondary alcoholby SN $^{1}$
(2) tertiary alcohol by SN $^{1}$
(3) secondary alcoholby SN $^{2}$
(4) tertiary alcohol by SN $^{2}$
AIEEE-2013
Q. The most suitable reagent for the conversion of $\mathrm{R}-\mathrm{CH}_{2}-\mathrm{OH} \rightarrow \mathrm{R}-\mathrm{CHO}$ is :
(1) $\mathrm{CiO}_{3}$
(2) PCC (Pyridinium chlorochromate)
(3) KMNO $_{4}$
(4) $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$
Jee-Main-2014
Q. Allyl phenyl ether can be prepared by heating:
(1) $\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{Br}+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{ONa}$
(2) $\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}+\mathrm{CH}_{3}-\mathrm{ONa}$
(3) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Br}+\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{ONa}$
(4) $\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{Br}+\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}_{2}-\mathrm{ONa}$
Jee-Main-2014
Q. In the Victor-Meyer’s test, the colour given by $1^{\circ}, 2^{\circ}$ and $3^{\circ}$ alcohols are respectively :-
(1) Red, blue, colourless
(2) Colourless, red, blue
(3) Red, blue, violet
(4) Red, colourless, blue
Jee-Main-2014
Q. Williamson synthesis of ether is an example of
(1) Nucleophilic addition
(2) Electrophilic substitution
(3) Nucleophilic substitution
(4) Electrophilic addition
Jee-Main-2014
Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...
Sol. (3) Nucleophilic substitution
Q. Phenol on treatment with $\mathrm{CO}_{2}$ in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with $\left(\mathrm{CH}_{3} \mathrm{CO}\right)_{2} \mathrm{O}$ in the presence of catalytic amount of $\mathrm{H}_{2} \mathrm{SO}_{4}$ produces :
Jee-Main-2018
Jee-Main-2018
Q. Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. A reacts with $\mathrm{Br}_{2}$ to form product B. A and B are respectively :
Jee-Main-2018
Jee-Main-2018
abe ye log kam questions dete h aur bacho ko bewakoof banate h
tqsm…..
tqsm…..😊
bht bhala
Very useful.
Thank you very much
higher level questions……
Thanks very useful
Helpful but if you give answer with explanation….then it would be great help
its nice
Very helpful
Extraordinary questions….
Useful for me