1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The most suitable reagent for the conversion of R - CH2 - OH $$\to$$ R - CHO is:
A
CrO3
B
PCC (Pyridinium Chlorochromate)
C
KMnO4
D
K2Cr2O7
2
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Arrange the following compounds in order of decreasing acidity :

JEE Main 2013 (Offline) Chemistry - Alcohols, Phenols and Ethers Question 140 English
A
$${\rm I}{\rm I} > {\rm I}V > {\rm I} > {\rm I}{\rm I}{\rm I}$$
B
$${\rm I} > {\rm I}{\rm I} > {\rm I}{\rm I}{\rm I} > {\rm I}V$$
C
$${\rm I}{\rm I}{\rm I} > {\rm I} > {\rm I}{\rm I} > {\rm I}V$$
D
$${\rm I}V > {\rm I}{\rm I}{\rm I} > {\rm I} > {\rm I}{\rm I}$$
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
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:
A
tertiary alcohol by SN1
B
secondary alcohol by SN2
C
tertiary alcohol by SN2
D
secondary alcohol by SN1
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Ortho–Nitrophenol is less soluble in water than p– and m– Nitrophenols because :
A
o–Nitrophenol is more volatile in steam than those of m – and p–isomers
B
o–Nitrophenol shows Intramolecular H–bonding
C
o–Nitrophenol shows Intermolecular H–bonding
D
Melting point of o–Nitrophenol is lower than those of m–and p–isomers.
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