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1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
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The synthesis of alkyl fluorides is best accomplished by:
A
Sandmeyer’s reaction
B
Finkelstein reaction
C
Swarts reaction
D
Free radical fluorination
2
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
A
2- Butyne
B
2- Butene
C
Acetylene
D
Ethene
3
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
In SN2 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH 2Cl, (CH3)2CHCl and (CH3)3CCl is:
A
CH3CH2Cl > CH3Cl > (CH3)2CHCl > (CH3)3CCl
B
(CH3)2CHCl > CH3CH2Cl > CH3Cl > (CH3)3CCl
C
CH3Cl > (CH3)2CHCl > CH3CH2Cl > (CH3)3CCl
D
CH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl
4
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
A solution of (–$$l$$) – chloro –1 – phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
A
carbene
B
carbocation
C
free radical
D
carbanion
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