1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
CH3Br + Nu- $$\to$$ CH3 - Nu + Br- The decreasing order of the rate of the above reaction with nucleophiles (Nu) A to D is
[Nu = (A) PhO, (B) AcO, (C) HO–, (D) CH3O]
A
A > B > C > D
B
B > D > C > A
C
D > C > A > B
D
D > C > B > A
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2-fluoroethanol is
A
Eclipse, Gauche, Anti
B
Gauche, Eclipse, Anti
C
Eclipse, Anti, Gauche
D
Anti, Gauche, Eclipse
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The increasing order of stability of the following free radicals is
A
$${({C_6}{H_5})_2}\mathop C\limits^ \bullet H$$ < $${({C_6}{H_5})_3}\mathop C\limits^ \bullet$$ < $${(C{H_3})_3}\mathop C\limits^ \bullet $$ < $${(C{H_3})_2}\mathop C\limits^ \bullet H$$
B
$${(C{H_3})_2}\mathop C\limits^ \bullet H$$ < $${(C{H_3})_3}\mathop C\limits^ \bullet $$ < $${({C_6}{H_5})_2}\mathop C\limits^ \bullet H$$ < $${({C_6}{H_5})_3}\mathop C\limits^ \bullet$$
C
$${(C{H_3})_2}\mathop C\limits^ \bullet H$$ < $${(C{H_3})_3}\mathop C\limits^ \bullet $$ < $${({C_6}{H_5})_3}\mathop C\limits^ \bullet$$ < $${({C_6}{H_5})_2}\mathop C\limits^ \bullet H$$
D
$${({C_6}{H_5})_3}\mathop C\limits^ \bullet$$ < $${({C_6}{H_5})_2}\mathop C\limits^ \bullet H$$ < $${(C{H_3})_3}\mathop C\limits^ \bullet $$ < $${(C{H_3})_2}\mathop C\limits^ \bullet H$$
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The reaction

AIEEE 2005 Chemistry - Basics of Organic Chemistry Question 232 English

is fastest when $$X$$ is
A
$$OCOR$$
B
$$O{C_2}{H_5}$$
C
$$N{H_2}$$
D
$$Cl$$
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