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1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
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In Carius method of estimation of halogens, 250 mg of an organic compound gave 141 mg of AgBr. The percentage of bromine in the compound is: (at. Mass Ag = 108; Br = 80)
A
48
B
60
C
36
D
24
2
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compounds will exhibit geometrical isomerism?
A
3-Phenyl-1-butene
B
2-Phenyl-1-butene
C
1,1-Diphenyl-1-propane
D
1-Phenyl-2-butene
3
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
For the estimation of nitrogen, 1.4 g of organic compound was digested by Kjeldahl method and the evolved ammonia was absorbed in 60 mL of M/10 sulphuric acid. The unreacted acid required 20 ml of M/10 sodium hydroxide for complete neutralization. The percentage of nitrogen in the compound is:
A
3%
B
5%
C
6%
D
10%
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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